Northern Sumatra Earthquake

Posted on May 1, 2014 by marcia

Strong earthquake in northern Sumatra, Indonesia (also felt in Medan AND parts of Malaysia)

Last update: May 1, 2014 at 3:21 pm by By Armand Vervaeck

Update 15:16 UTC : The focal mechanism as portrayed below shows a compression type of mechanism

Update 15:12 UTC : The epicenter was following local agency BMKG at in the sea 67 km far southwest Kab.ACEH Singkil. Depth 12 km. Max. MI intensity Sibolga III, III Mount Sitoli, III Naidoo, Mulberry III (thats after all weaker than we previously were expecting).

Update 15:00 UTC :

Update 14:56 UTC : Theoretically a Maximum MMI V (moderate) shaking is expected to have been felt. The earthquake was felt until Malaysia. The stronger Sumatran earthquakes are often felt in nearby Malaysia

Update 14:49 UTC : BMKG reports a Magnitude of 5.7 at a depth of only 12 km. Slight damage cannot be excluded in the coastal areas nearest to the epicenter (also based on our experience with another similar earthquake in the same region).

200 km SW of Medan, Indonesia / pop: 1,750,971 / local time: 21:35:37.8 2014-05-01
104 km W of Sibolga, Indonesia / pop: 79,714 / local time: 21:35:37.8 2014-05-01

Most important Earthquake Data:

Magnitude : 5.8

Local Time (conversion only below land) : Unknown

GMT/UTC Time : 2014-05-01 14:35:38

Depth (Hypocenter) : 58 km

from: http://earthquake-report.com/2014/05/01/strong-earthquake-northern-sumatra-indonesia-on-may-1-2014/

Strong Earthquake – Sumatra, Simeulue

Posted on July 25, 2012 by marcia

Very strong earthquake causes 1 death in Indonesia (Sumatra, Simeulue island)

Last update: July 25, 2012 at 9:55 am by By Armand Vervaeck and James Daniell

Most important Earthquake Data:
Magnitude : M6.4 (BMKG), M6.4 (USGS)
UTC Time : 00:27:45 UTC, 25th July 2012.
Local time at epicenter : 7:27:45am WIB, 25th July 2012.
Depth (Hypocenter) : 10km (BMKG), 22km (USGS)

Geo-location(s) :
28km (17mi) NW of Sinabang, Indonesia
64km (101mi) S of Meulaboh, Indonesia
260km (161mi) W of Kabanjahe, Indonesia
275km (170mi) WSW of Binjai, Indonesia
620km (385mi) W of Kuala Lumpur, Malaysia

Update 09:40 UTC : – Local sources are reporting cracked walls and loosened ceilings in many buildings like mosques, cultural centers etc.
– Electrical current is still down in the central part of the island (8 hours after the earthquake). Power company personnel is working hard to repair the damage.

Important update : Mr. Puyong was unfortunately killed (district of Teupah Barat) when he fell running out of his house. The death cause was probably due to high blood pressure because of an illness.

Landscape at the western part of Simeulue island, Aceh province, Indonesia image courtesy Haris Aceh

This is named as an indirect death, and mean that this earthquake will be labeled CATDAT Orange.

The earthquake was felt strongly in the Simeulue district with many people running out of their houses in fear.

The shaking was felt as about a intensity V.

Update : 190000 people are living within a radius of 100km of the epicenter.

Update : 5000 people will have experienced a MMI VI (strong shaking) (parameters based upon theoretical calculations). 89000 people felt a moderate MMI V shaking and 415000 people a light shaking.

Update : Seismological agencies do not seem to agree on the epicenter location. USGS locates the epicenter in a bay to the east of the island. Local BMKG, west of the island. BMKG reports a depth of 10 km. An epicenter location in the Ocean has a weakening effect on potential damage.

Update : BMKG, the Indonesian seismological agency did report that there was no risk for a tsunami. In general earthquakes below M7 do normally not generate tsunamis

The epicenter of the earthquake was in a bay at the eastern part of the island of Simeulue, an island district of Sumatra. Simeulue is the closest island to the mega subduction fault line who was responsible for a number of cruel earthquakes and tsunamis the last 15 years. A lot of people lost their lives. In other words earthquakes are common at Simeulue but most of the time the origin is in the Ocean. Today’s earthquake was the first powerful one since many months.

from: http://earthquake-report.com/2012/07/25/strong-earthquake-causes-1-death-in-indonesia/

Sumatra 6.6 Earthquake

Posted on June 23, 2012 by marcia

M6.6 earthquake hits Sumatra

Last update: June 23, 2012 at 7:11 am by By Armand Vervaeck and James Daniell

UPDATE:- From the epicenter, reports are that there was major panic with people jumping out of houses, however at this point there is no damage being reported.

Many people fleed from hospitals in Singkil, scared of a collapse. They are currently outside, awaiting aftershocks.

The last major quake in the epicentral region was around a year ago, claiming a life and damaging 100s of buildings.

An intermediate depth earthquake has hit Sumatra near Aceh. Shaking could hit a VI intensity.

The earthquake has been reported as a weak shaking tapering off quite quickly which is good news from these localities.

This earthquake was felt by people in Penang in Malaysia quite strongly.

A tsunami warning was issued, but for such a deep hypocenter it is usually unlikely that such a large tsunami would result. Only due to underwater landslides.

BMKG Shakemap of the earthquake (courtesy: BMKG)

Most important Earthquake Data:
Magnitude : Ml6.6 (BMKG)
UTC Time : 23rd June 2012
Local time at epicenter : 23rd June 2012 – 11:34:52 Indonesian WIB
Depth (Hypocenter) : 103km
Geo-location(s) : 24 km NW of KOTA-SUBULUSSALAM-NAD, 40 km NW of KAB-ACEHSINGKIL , 42 km SE of KAB-ACEHSELATAN , 127 km SW of MEDAN-SUMUT , 1417 km NW of JAKARTA-INDONESIA

for more information and updates, go to: http://earthquake-report.com/2012/06/23/m6-6-earthquake-hits-sumatra/

Sumatran Earthquake

Posted on September 6, 2011 by marcia

Very strong (deep) earthquake below Sumatra, Indonesia – 2 people killed + 100′s of houses uninhabitable

Last update: September 6, 2011 at 12:52 pm by By Armand Vervaeck and James Daniell

Earthquake overview : The very strong Singkil, Aceh earthquake at intermediate depth happened below land on Sumatra, Indonesia. A 10 year old boy (first reported as 12) has died from a collapsing wall. 2 other people have been slightly injured. A second person has been killed after an asthma attack during the shaking.

MPORTANT UPDATE 12:44 UTC : Hundreds of homes in the villages of Desa Tangga Besi, Kecamatan Simpang Kiri and Subulussalam are uninhabitable.
Damage also occurred to a number of mosques in District of Kecamatan Simpang Kiri.
Nearly all the pillars of the mosque are cracked. Damage was also inflicted to the ceiling stucco of the mosks. Residents are afraid to enter the damaged mosks.
The districts of Sultan Daulat, Simpang Kiri and Longkib have also reported severe damages.
People will need help from the local governments to repair and rebuild their destroyed houses.
BPBD Kota Subulussalam has reported that 5 mosques, 11 schools, 3 health centers and 21 houses and shops were seriously damaged in the city of Subulu. Losses estimated at tens of billions of rupiak.

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