Tag Archives: Earthquake

Dominican Republic Earthquake

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(As you know, the Dominican Republic shares an island with Haiti.  My concern here is the possibility of another quake related to this one which could potentially affect Haiti also, if not the whole island.  This is a land of great poverty and want.  Even small natural disasters are magnified under such conditions, in terms of the effect on people there.)

Shallow earthquake in the southern part of the Dominican Republic

Last update: January 5, 2012 at 11:32 am by By

Earthquake overview : Moderate earthquake with epicenter in the southern part of the island.  The earthquake has been felt all over the island (including in Haiti)


Epicenter landscape – panoramio image courtesy Elnalouise

11:28 UTC : The Dominican Republic Civil Defense has alerted all of his services minutes after the quake occurred but at the time of writing this update, NO damage or injuries have been reported. Authorities in the direct epicenter area are currently inspecting buildings and public works to assess the situation.

11:04 UTC –  Rock slides have been reported along the road from Azua to San Juan. Drivers are warned to be careful in driving this road.

11:02 UTC – The epicenter has been located 17 km South-East of  Ocoa. Following the local media who are referring the the Dominican seismological agency UASD, the depth of the hypocenter was at 33 km and the magnitude was measures as 5.2. Both USGS and EMSC have reported a magnitude of 5.3 at a depth of 10 km.  33 km or 10 km makes a world of difference towards damaging capability.

– As early stated in this report, the earthquake has been felt almost all over the country but will have been felt also in neighboring Haiti !

– A lot of people are downloading our QuakeSOS iPhone application, but so far people are only testing and sending SAFE alerts.

– reports from the Dominican Republic are talking about people leaving their houses in panic (normal with such a magnitude)

– Maximum recorded (reported) MMI seems to be V = moderate shaking. Moderate shaking damage can be cracks in walls at max., but we will have to wait for a few more hours to be certain that no additional damage has been inflicted.

– The area has a lot of hills (see image)

– Closest villages to the epicenter (errors are possible within a radius of 16 km) : La Palma, Calderon, Hatillo, Agua, Galeon and Bani

– EMSC reports the same values than USGS (5.3 @ 10 km)

– The earthquake occurred during the early morning hours 05:35 AM !, when almost everybody was still sleeping

– the shallow hypocenter (focal depth) makes this earthquake moderately dangerous within a radius of 20 km.

Most important Earthquake Data:
Magnitude : 5.3
UTC Time : Thursday, January 05, 2012 at 09:35:29 UTC
Local time at epicenter : Thursday, January 05, 2012 at 05:35:29 AM at epicenter
Depth (Hypocenter) : 10 km
Geo-location(s) :
17 km (10 miles) SSE (149°) from Ocoa, Peravia, Dominican Republic
33 km (20 miles) W (270°) from San Cristóbal, San Cristóbal, Dominican Republic
50 km (31 miles) W (260°) from SANTO DOMINGO, Dominican Republic

for more information and updates, go to:    http://earthquake-report.com/2012/01/05/shallow-earthquake-in-the-southern-part-of-the-dominican-republic/

Earthquake Shakes Northeastern Ohio

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Unusual very shallow magnitude 4.0 earthquake in Ohio

Last update: January 2, 2012 at 12:23 pm by ByArmand Vervaeck and James Daniell

Earthquake overview : A single shallow earthquake alerted people in Ohio and even in the neighboring states.  Some officials suspect “fracking” to be at the origin of this earthquake, others say that there is no proof that the earthquakes are caused by fracking but are caused near brine injection wells, not fracking.
Update 02/01 – 12:19 UTC
An official in Ohio said on Sunday that the underground disposal of wastewater from natural-gas drilling operations would remain halted in the Youngstown area until scientists could analyze data from the most recent of a string of earthquakes there.

There are luckily no reports of serious damage.

Earthquake-Report received a big number of experience Felt It reports. We thank the many people sending us their testimonies.  The Felt It reports can be found below.

NPR writes : Officials said Saturday they believe the latest earthquake activity in northeast Ohio is related to the injection of wastewater into the ground near a fault line, creating enough pressure to cause seismic activity.  The brine wastewater comes from drilling operations that use the so-called fracking process to extract gas from underground shale.
Ohio Department of Natural Resources Director Jim Zehringer said during a news teleconference that fracking is not causing the quakes. “The seismic events are not a direct result of fracking,” he said.
“Fracking” is common in this area of the state, but this earthquake, and the others in the area over the past year have been near a “brine injection well“, and not any fracking wells. Officials do now believe that the earthquakes are related to the injection wells, but not fracking.
Earthquake-report.com knows that fracking is a highly controversial issue. Both sides have a hard time to proof that they are right.  The heated discussion is not only actual in Ohio, but also in a number of other US States.

Feli It map – image courtesy USGS

for more information and updates, go to:    http://earthquake-report.com/2012/01/01/unusual-very-shallow-earthquake-in-ohio/

Massive earthquake Shakes Japan

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Massive deep earthquake sends a vibration all over Japan

Last update: January 1, 2012 at 1:45 pm by By

Earthquake overview : A massive earthquake occurred in the hot solid mantle of the earth.  Due to the focal depth of 370 km this earthquake has been felt all over Japan. The earthquake was however harmless due to the weakened impact.

Intensity map courtesy JMA Japan

Update : The hypocenter of this earthquake was far too deep to generate a tsunami.

Update :  Values of other seismological agencies
EMSC : 7.0 at 365 km
GEOFON : 6.7 at 361 km
CEN : 7.0 at 360 km

The earthquake must have been felt by millions of people.

A little bit to our surprise the shaking was strongest in the greater Tokyo area (see yellow bullets on the JMA map) , although other areas in Japan felt it as a weak shaking and were located closer to the epicenter. Part of the reason will certainly be the propagation of the wave.

The earthquake was calculated to be felt as a weak shaking based on the USGS Data, however the Japanese seismological agency JMA reported a V MMI (moderate shaking). These values are approx.  4 JMA (Japanese use another seismic intensity scale)

Very strong but very deep earthquake with an hypocenter (focal depth) in the hot solid mantle of the earth. Based on calculations of the seismological centers, only a weak shaking will have been felt in a very wide area. The epicenter was located in between a lot of submarine volcanoes .

Most important Earthquake Data:
Magnitude : 7.0 (JMA) 6.8 (USGS)
UTC Time : Sunday, January 01, 2012 at 05:27:54 UTC
Local time at epicenter :  Sunday, January 01, 2012 at 02:27:54 PM at epicenter
Depth (Hypocenter) : 370 km (JMA) 349 km (USGS)
Geo-location(s) :
242 km (150 miles) SW of Hachijo-jima, Izu Islands, Japan
365 km (226 miles) S of Hamamatsu, Honshu, Japan
393 km (244 miles) S of Shizuoka, Honshu, Japan
495 km (307 miles) SSW of TOKYO, Japan

for more information and updates go to:    http://earthquake-report.com/2012/01/01/massive-deep-earthquake-sends-a-vibration-all-over-japan/

 

Siberian Earthquake

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Very strong shallow and dangerous earthquake in Siberia – severe shaking reported

Last update: December 28, 2011 at 12:34 am by By 

Earthquake overview : A very strong earthquake (M 6.5 to M 7.0 following different sources) happened in the South Western part of Siberia. The epicenter was located in a sparsely populated wilderness area at a distance of 120 km from Kyzyl, a city with 109,000 inhabitants and the capital of the Tuva Republic.

“I have Felt it” Reports –> see below + Let us know “how you have felt this earthquake”
To read the full story as it happened, we advise our readers to start at the lower part of the page (earthquake data).

Keep this page open or return regularly as we will be back with more details when they become available

Landscape in the greater epicenter area – Panoramio image courtesy Roman Petrov

 

Update 28/12 – 00:34 UTC
Overview of the reported magnitudes and depth from the seismological agencies reporting worldwide earthquakes :
RAS (RUS) – M 6.5 @ 10 km
USGS (USA) – M 6.6 @ 6.9 km
EMSC (Europe) – M 6.5 @ 10 km
GEOFON (Germany) – M 6.6 @ 10 km
CEN (China) – M 7.0 @ 10 km

Update 28/12 – 00:13 UTC
RAS (Russian Academy of sciences) has reported 3 aftershocks of 4.6 @ 10km; 4.3 @ 10 km and 4.9 @ 15 km

Update 28/12 – 00:13 UTC :  RT (English broadcasting) is reporting that Mr. Shoigu has said that themagnitude was raised to 9.5. We do not believe this report. The Minister mentioned the number as MSK (almost equivalent to MMI and on a scale from 0-12).  A 9.5 magnitude at this shallow depth would have been totally destructive and damaging far beyond the epicenter. Kyzul suffered light to moderate shaking. As a result there might be some cracks in houses, but Kyzil (said to be at ca 100 km from the epicenter) had no severe damage or devastation.

Update  23:55  UTC : During the night, specialized rescue personnel from other areas have been transported to Kyzyl. They will leave as soon as possible to the epicenter area to assess the situation. The emergency minister was saying that many people had their second home in the greater epicenter area.  Having visited Siberia before i (Armand) know for sure that these houses are in 99% of the cases 1 level houses. Being the Siberian winter (freezing temperature at the moment is -20 to -30 °C) people will not be in these houses in great numbers. Our estimate is that there might be damage at these houses, but that apart of some accidental dead, the toll will be acceptable. This estimate is based upon the epicenter of USGS and the population numbers of GDACS ‘see below). Let us hope that we are right.

Update : The earthquake in Siberia is estimated at 9.5 MSK, according to Emergency Situations Minister Sergei Shoigu.
Description IX MSK : Destructive – General panic. People may be forcibly thrown to the ground. Waves are seen on soft ground. Substandard structures collapse. Substantial damage to well-constructed structures. Underground pipelines ruptured. Ground fracturing, widespread landslides.

Update :  Magnitudes and focal depth are reported in different numbers by the different sources. Magnitude goes from 6.5 until 7.0. Focal depth ranges from 45 km to 6.9 km !

Update : The picture looks almost romantic, but bear in mind the people have to stay outside during the night at temperatures of -26 °C ! Luckily no fresh snow. Snow is however still on the streets. This is Siberia !

Update : MSK scale : The Medvedev-Sponheuer-Karnik scale is somewhat similar to the Modified Mercalli (MM) scale used in the United States. The MSK scale has 12 intensity degrees expressed in Roman numerals. The description of 8 MSK is as follows : Damaging / Many people find it difficult to stand, even outdoors. Furniture may be overturned. Waves may be seen on very soft ground. Older structures partially collapse or sustain considerable damage. Large cracks and fissures opening up, rockfalls. (source Wikipedia)

Update : 8 MSK at the epicentre according to RAS. Only 5 MSK at Kyzyl meaning that there is likely only minor damage.
In Novosibirsk, the intensity of the earthquake was to be 1.6 points. “This is the calculated data, while data from seismic stations, which
should fix the surface waves has been reported. As soon as they arrive and are processed, there will be more accurate, more likely, the strength of earthquakes will increase,” – said the RAS. According to Director of Geophysical Service (TOS), Siberian Branch of RAS Victor Seleznev, the epicenter of the earthquake was located in the upper Yenisei River east of the city of Kyzyl, in the area of Academician Obruchev. The scientist said that the shaking in Krasnoyarsk was 3-4 MSK, at the epicenter – 8 MSK.
(ER : 8 MSK means that there will be likely damage in the epicentral area – epicenter area damage has not been reported yet)

Update : According to the MOE, the epicenter of the earthquake was located 120 kilometers east of Kyzyl(Tuva). (ER : USGS reported the earthquake epicenter at 96 km from Kyzyl)

Update : According to preliminary data, there has been no deaths or destruction reported after the earthquake in Siberia , told RIA Novosti by telephone a representative of the Siberian Regional Emergency Center.

Update : Video from people having to spend the night outside their houses at a temperature of at least -20°C

Update : Residents of Tomsk, Krasnoyarsk and Khakassia felt the quake. The apartments had swaying chandeliers and furniture moving. People fled their homes. However, users of the Internet in their microblogs
reported outage of cellular communication in the area. Meanwhile it is reported that the earthquake in Siberia had no effect on the power plant there. (ER : these cities are several hundred km from the epicenter).

for more and updates, go to:   http://earthquake-report.com/2011/12/27/very-strong-earthquake-in-siberia/

Update on El Hierro Activity

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El Hierro Volcano : Yellow-Red alert – the eruption continues at a moderate rate

Last update: December 24, 2011 at 3:13 pm by By 

Update 24/12 – 15:13 UTC
– NO NASA Modis satellite image today as it was too cloudy when the satellite was padding by.
– NO new earthquakes
– continuous harmonic tremor slightly decreasing since 06:00
– The video below is the morning time lapse video from the Telefonica / Cabildo La Restinga village webcam as captured by Julio del Castillo Vivero. The emitting vent and corresponding stain can well be seen from the middle of the morning until the end

Joke Volta early morning pictures

Click on the picture to see all images in full size

Update 24/12 – 09:14 UTC
– NO new earthquakes
– continuous harmonic tremor with a lot of action from 03:30 until 04:00
– a very small stain can be seen on the El Pinar / Ustream and La Restinga village webcams
– Joke reports that the she saw a very vast stain from her starting point at El Pinar this morning. Now she is in La Restinga and says that she sees the source of the stain at the main vent. The emitted material is carried by the current to the west (hard to see on the webcam)
– IEO (Oceonographic Institute of Spain) has reported that they are currently analyzing the bathymetry data(depth measuring of the sea floor) from their latest mission. They have a lot of work to do before a final report can be issued as many irregular measurements have to be eliminated. The emission gases, floating and suspended sediments and water conditions are resulting in false data.

Christmas tree in CAP science center in La Restinga. The tree hangers are images of the main events of the eruption

Update 23/12 – 18:43 UTC
Joke has created a small video from the pictures that she made while traveling with the bus from La Restinga to El Pinar.  Additionally, click here to see the pictures Joke made today.

Update 23/12 – 14:00 UTC / updated 15:43 UTC
Today’s NASA Modis satellite image (from max. a couple of hours ago) shows a very strange picture from the stain and the emission vent. The left white patch is the main vent emission point and small stain. The right white patch at the smallest point of the stain maybe a small remaining cloud patch from the bigger cloud range below it or a new vent (highly unlikely on this location). Click here to see the location of the satellite image.

NASA Modis satellite image of today December 23 – zoomed version (cloud has been blackened)

NASA Modis image without blackened clouds

Update 23/12 – 11:30 UTC
– an active fresh stain visible from La Restinga.
– periods with increased harmonic tremor

image courtesy IGN

La Restinga eruption stain on December 23 – image courtesy Cabildo de El Hierro and Telefonica

Update 23/12 – 08:07 UTC
– 2 new earthquakes since midnight UTC . Both had a magnitude of 1.6 at a depth of respectively 16 and 15 km. The first one happened at 02:16 (epicenter location) and the second at 04:09 (epicenter location)
– variable harmonic tremor
– 25 cruise ships have planned to visit El Hierro next year. The port of La Estaca will be the embarkation port. The average number of passengers will be 300 per ship.
– the company running the Christmas lottery, one of the first lotteries in the world, has decided to pay 60,000 euro as a gift to the people of El Hierro.
– the Terencio supermarket chain did send a food load of 4200 kg to help the Herreños

This information comes from: earthquakereport.com.  For more information and updates, go to:    http://earthquake-report.com/2011/09/25/el-hierro-canary-islands-spain-volcanic-risk-alert-increased-to-yellow/

Strong Earthquake – Iguala, Mexico

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Very strong earthquake near Iguala, Mexico – 2 people killed, 4 injured and 50 houses damaged in Guerrero

Last update: December 11, 2011 at 5:38 pm by By 

Earthquake overview :  A very strong earthquake occurred near Iguala Mexico at 07:47 PM local time. Luckily the hypocenter was at a depth of 64.7 km.

image copyright and courtesy telediario.mx

Update 11/12 – 17:23 UTC
– The Civil Defense undersecretary from the Guerrero province has declared that the official death toll is 2(updated from 3), 4 people have been injured  and 50 houses have been damaged.

Update 11/12 – 13:23 UTC
– As could be expected after such a powerful earthquake, a number of aftershocks have been reported so far
– The picture at right shows the damaged van of the unlucky driver who lost his live during this earthquake. We do not know the exact circumstances but it looks that he was hit by one of the heavy stones on the ground. 2 woman inside the van were more lucky as the far heavier stones where blocked by the roof of the van. The woman were injured.

Update 11/12 – 12:06 UTC
The death toll remains at 3 and will probably and hopefully not increase anymore.
All the fatalities have been reported in Guerrero state.
The Mexico City DF (Federal district) has reported a SALDO BLANCO, which means that there were NO injuries and/or fatalities
– At least 13.2 million people must have Felt the earthquake
– The deep hypocenter or focal depth  is the main reason why this very strong earthquake did not made more victims.
– Based on what we know right now, we can call it a lucky escape.
– The video below shows the shaking while a TV soap was being recorded. We think that this video was recorded in Mexico City, at least 150 km from the epicenter. The video shows very well the length of the shaking (official reports are mentioning 47 seconds, but this might have been the case closer to the epicenter).

Update 09:06 UTC : 
A third death has occurred in the northern region of Guerrero, where a rock fell onto a driver.
Thus we have had 1 death via structural failure, and 2 via rockfalls.
In Chilpancingo, several houses and businesses were damaged, while the Cathedral of the Assumption of Mary has a serious crack in one of the towers.
Civil Protection has continued monitoring of damage, mainly in Zumpango del Rio, where the epicenter occurred. Helicopters are flying over for more reports, as people gradually have returned inside their buildings in a city that is ready to receive thousands of pilgrims for the annual celebration of the feast of Our Lady of Guadalupe.

Update 08:34 UTC : 
The death toll from this earthquake remains at 2. An 11 year old boy was killed when the roof of his house fell on him, and a rock fall caused the death of a motorist. As yet these are the only reports of deaths. Injuries have occurred in many locations from falling structures, objects and landslides.

I Have Felt It map – courtesy USGS

Update 08:34 UTC : 
The epicentral region has been hit by many earthquakes in the past 110 years according to CATDAT – here are just some of the damaging earthquakes within 100km of the epicenter. Chilpancingo has had damage on average every 30 years.
Date Magnitude Lat/Long No. of fatalities
1899 7.5Ml 17.1,-100.5 Chilpancingo damage
16/01/1902 7.3Ml 17.6,-99.5 300
6/10/1937 6.5Ml 17.3,-99.3 0
10/01/1944 7Ml 18.1,-100.6 0
11/05/1962 7.3Mw 17.18,-99.642 4
19/05/1962 6.7Ms 17.009,-99.763 30
30/11/1962 5.1Ml 17.6,-99.7 1
6/07/1964 7.2mB 18.193,-100.509 78
2/07/1968 5.7mB 17.519,-100.259 1
7/06/1976 6.4Mw 17.378,-100.691 0
13/04/2007 6Ml 17.302,-100.198 0

Update 08:11 UTC : 
From such an earthquake, the shaking in the soft soil (clay basin) of Mexico City, can sometimes be amplified many times, and could be the reason why we have seen damaged buildings in Mexico City despite expected low ground accelerations due to the distance from the epicenter. Mexico City was built on a lake originally, and hence the soft alluvial soils that magnify ground motion.

for more, updates, and links, go to:   http://earthquake-report.com/2011/12/11/very-strong-earthquake-at-intermediate-depth-near-iguala-mexico/

Western Australia Coastal Earthquake

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Strong earthquake near the coast of Western Australia (Cape Range National Park)

Last update: December 6, 2011 at 1:49 pm by By 

 

December 5, 2011 By 
Histroric earthquakes map courtesy USGS

Earthquake overview : A strong shallow earthquake occurred in the coastal waters of western Australia. The quake occurred in the middle of the Australian night approx. 50 km from Exmouth and the Cape Range National Park.

Update :  The greater epicenter area had some similar earthquakes since 1990, most of them to the North West and all of the earthquakes at a depth less than 35 km.

Update :  The Muiron Islands Nature reserveis located within the potential (light) damageradius given by Geoscience Australia

Update :  All data below is from Geoscience Australia

Update : Locations where the earthquake might have been felt : Lyndon, Exmouth, Cape Range National Park, Dampier, Onslow and Yannarie

Update :  Geoscience Australia expects this earthquake to be felt in a radius of 252 km

Most important Earthquake Data:
Magnitude : Mw 5.4
Local time at epicenter : Tuesday, December 06, 2011 at 04:10:03 AM at epicenter

Depth (Hypocenter) : 15 km
Geo-location(s) :
Approx. 20 km from the Muiron Islands Nature Reserve
50 km from the North West Cape

for updates and more, go to:  http://earthquake-report.com/2011/12/05/strong-earthquake-near-the-coast-of-western-australia-cape-range-national-park/

Earthquake – Virginia

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12/3/2011 — Earthquake in Virginia — 3.1M @ “FRACKING” operation — 37.200°N, 81.885°W

Posted on December 4, 2011

 

 

Clearly, we see FRAC wells or other types of fracking/oil/gas wells at the epicenter of this Virginia earthquake:

Here are the USGS coordinates: 37.200°N, 81.885°W

here is a link to the official stats for the quake:http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/se120311a.php

Magnitude 3.1 – VIRGINIA

2011 December 03 11:12:47 UTC

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude 3.1
Date-Time
Location 37.200°N, 81.885°W
Depth 6.2 km (3.9 miles)
Region VIRGINIA
Distances
  • 13 km (8 miles) NNW (348°) from Raven, VA
  • 14 km (8 miles) NNW (329°) from Richlands, VA
  • 16 km (10 miles) NW (320°) from Cedar Bluff, VA
  • 189 km (118 miles) NW (311°) from Winston-Salem, NC
  • 396 km (246 miles) SSW (205°) from Pittsburgh, 

PPhillipines Earthquake

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Strong earthquake in the Philippines

Last update: November 30, 2011 at 1:23 am by By 

Earthquake overview : A strong earthquake occurred in the Philippines at 00:27 UTC. Preliminary data are reporting the epicenter at 152 km from Dagupan, Luzon


Shaking map Philippines November 30 earthquake – image courtesy USGS

Update : the epicenter of the earthquake is almost on top of the subduction fault line along the coast

Update : An intensity II (Phivolcs scale) has been reported in  Quezon City; Manila; Mandaluyong City; Ortigas, Pasig; Makati City; Obando, Bulacan; Baguio City

Update : Phivolcs reports a magnitude of 6.0 at a depth of 16km. The epicenter following Phivolcs is 94 km from Paluig.

Update : MMI Values and nearest cities (K stands for 1000 people) :
V    Bolitoc    3k
V    Bani    3k
V    Palauig    3k
V    Lucapon    6k
V    Ilio-ilio 2k
V    Masinloc 28k
IV    Agoo 29k
IV    Castillejos 27k
IV    Binmaley 57k
IV    Binmaley 44k
IV    Binmaley 68k
V = moderate shaking, IV = light shaking
Moderate and light shaking are seldom generating damage.

Update : 196,000 people will have experienced a moderate MMI V shaking, 1,032,000 people a light shaking and much more a weak shaking

Update : WAPMERR, the theoretical damage engine confirms our own estimates and reports to expect 0 injured and 0 killed people.

Update : A tsunami has NOT to be feared

Update : Earthquake-report.com does not expect any serious damage out of this earthquake

Update : Luckily the epicenter is at least 80 km out of the coast

Update : USGS has just disclosed the data from this earthquake. USGS reports a magnitude of 6.0

Update : EMSC reports a preliminary magnitude of 5.8 at a depth of 80 km. Other agencies are still calculating the data

to read more, and for updates, go to:    http://earthquake-report.com/2011/11/30/strong-earthquake-in-the-philippines/

Earthquake of Hokkaido, Japan

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Very strong earthquake near the Hokkaido Coast, Japan

Last update: November 24, 2011 at 11:43 am by By 

Earthquake overview : At 07:25 PM local time a very strong earthquake occurred at intermediate depth near the Hokkaido coast, Japan. JMA Japan has reported a weakening depth of 30 km. Max. reported intensity is 5- (on a scale from 0 to 7)

Update : The earthquake was felt as far as the Akita and Yamagata prefectures

Update :The earthquake happened in the Urakawa Oki area  of Hokkaido

Update : Nor JMA nor GDACS have called a tsunami risk

Update : Indirect damage by landslides is always possible, especially for road 235 and 236, close to the epicenter

Update : The area closest to the epicenter is mainly a wilderness area with very few villages and towns

 

Image from the wild Hokkaido coast – Panoramio image courtesy Yobito Kayanuma

 

Update : WAPMERR, the theoretical damage engine does not expect injuries, fatalities or major damagefrom this earthquake.

Update : Earthquake-Report.com does not expect serious damage as the epicenter is out in the sea and as we have an intermediate depth of 42 km (USGS) 30 km (JMA)

Update : this earthquake can be seen as a powerful aftershock from the cruel Tohoku earthquake and tsunami from March 11 earlier this year

Update :  5+ is seen by Earthquake-report.com as potentially dangerous
Shaking values from JMA Japan :