Deadly earthquake hits Indonesia.

Last update: January 22, 2013 at 10:53 pm by By

Earthquake overview :  A deadly earthquake has struck central Banda Aceh. 1 girl has been killed and a number of houses and mosques damaged and destroyed.
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A very strange earthquake has hit Indonesia.

A significant difference of over 70km exists in between the epicenters of BMKG and the USGS. At this point it seems as though the USGS fault solution is correct.

Update Jan. 22 19.00 UTC: Recent news from Indonesia give a total number of 15 injured persons from this quake. 5 of them were seriously injured. All of them are from Mane district close to the epicenter. There are no further fatalities so far.

Apriyadi, from Aceh Disaster Management Agency (BPBA) said a nine-year-old girl was killed in the Pidie district after a cabinet in the bedroom fell on her when the quake struck. (Tutia Rahmi was the name of the girl)

Earthquake-report.com reminds users that they should go out and buy a couple of screws and a small metal L-plate and to tie furniture into walls. Over 5% of earthquake deaths from shaking occur from non-structural causes, and in smaller earthquakes (intensity VI-VII) are the main source of deaths along with heart attacks and panic deaths.
In developed countries with low-moderate seismic risk, this should be mandatory!

Seven people were injured and four of them with serious injuries, because of collapsed walls and other elements.

In Pidie, the earthquake also resulted in a number of damaged houses and mosques. The condition of the worst damage occurred in the District Mane, Tangse, and Geumpang, Pidie. This corresponds also to the USGS epicenter.

It is estimated that there are some additional residents who were injured due to exposure to collapsing walls and furniture. Unconfirmed reports of two extra deaths have also occurred.

This earthquake corresponds to a CATDAT Red event. This is the first of 2013.

Shaking map of the M6.0 Northern Sumatra earthquake of January 21/22 2013

Shaking map of the M6.0 Northern Sumatra earthquake of January 21/22 2013

Text written in our daily overview of January 21 after the earthquake.

Important Update Jan. 2207:16 UTC : The good news we expected to confirm today is unfortunately bad news. A 9 year old was crushed by the rumble of her house and died. 7 other people were injured. Tens of houses collapsed and a lot of people have been moved to temporary shelters as their houses were damaged. A mosk did also collapsed.
An aftershock measuring M5.1 at a depth of only 12 km occurred later but normally the people must have been living on the street then.
As the girl was from Pidie which is located at the edge of the VII MMI intensity map from USGS (upper map), we believe that the USGS data may have been better this time.

Local BMKG reports however M6.0 at a depth of 84 km (vs 37 km USGS)
Epicenter 33km SSW of Reuleuet following USGS preliminary reports
Lets hope that the BMKG depth of the earthquake is right as otherwise damage can be expected.
84 km depth means only a light to very weak shaking but in a very wide radius.
The earthquake occurred at 05:47 local time.
ER considers BMKG as a very good seismological agency and hopes that BMKG is right with the below map.

Most important Earthquake Data:

Magnitude : M6.0 (BMKG) and then M5.1 (BMKG) ; Mw5.9 and Mw4.7 (USGS)

UTC Time : 22:22:42 on 21st January, 2013 and 22:47:55 on 22nd January, 2013
Local time at epicenter : 05:22:42 on 22nd January, 2013, 05:47:55 on 22nd January, 2013
Depth (Hypocenter) : 84km and then 12km (BMKG) ; 16.6km and 15km (USGS)
Geo-location(s) : 15km from Kota Banda Aceh

  1. 35km (22mi) SW of Reuleuet, Indonesia
  2. 48km (30mi) SSE of Sigli, Indonesia
  3. 73km (45mi) WSW of Bireun, Indonesia
  4. 91km (57mi) N of Meulaboh, Indonesia
  5. 653km (406mi) WNW of Kuala Lumpur, Malaysia

Links to important maps
USGS Did You Feel It Map
Google satellite map showing the epicenter and the surrounding area
Historic earthquakes map
Shaking map
Scientific parameters
Human impact map

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SRC Location UTC Date/time M D INFORMATION
EMSC Northern Sumatra, Indonesia Jan 21 22:48 PM 4.7 15 MAP I Felt It
GEOFON Northern Sumatra, Indonesia Jan 21 22:48 PM 4.7 10 MAP I Felt It
USGS Northern Sumatra, Indonesia Jan 21 22:48 PM 4.7 14 MAP I Felt It
USGS Northern Sumatra, Indonesia Jan 21 22:22 PM 5.9 16 MAP I Felt It
EMSC Northern Sumatra, Indonesia Jan 21 22:22 PM 6.0 2 MAP I Felt It
GEOFON Northern Sumatra, Indonesia Jan 21 22:22 PM 6.0 10 MAP I Felt It
USGS Near The South Coast Of Papua, Indonesia Jan 21 18:32 PM 5.4 27 MAP I Felt It
EMSC Near S Coast Of Papua, Indonesia Jan 21 18:32 PM 5.3 20 MAP I Felt It
GEOFON Irian Jaya Region, Indonesia Jan 21 18:32 PM 5.3 10 MAP I Felt It

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City/Village where you felt the earthquake
MMI II (Very weak shaking) ?
People :
Felt by persons at rest, on upper floors or favorably placed.
MMI III (Weak shaking) ?
People :
Felt indoors; hanging objects may swing, vibration similar to passing of light trucks, duration may be estimated, may not be recognized as an earthquake.
MMI IV (Light shaking) ?
People :
Generally noticed indoors but not outside. Light sleepers may be awakened. Vibration may be likened to the passing of heavy traffic, or to the jolt of a heavy object falling or striking the building.
Fittings :
Doors and windows rattle. Glassware and crockery rattle. Liquids in open vessels may be slightly disturbed. Standing motorcars may rock.
Structures :
Walls and frames of buildings, and partitions and suspended ceilings in commercial buildings, may be heard to creak.
MMI V (Moderate shaking) ?
People :
Generally felt outside, and by almost everyone indoors. Most sleepers awakened. A few people alarmed.
Fittings :
Small unstable objects are displaced or upset. Some glassware and crockery may be broken. Hanging pictures knock against the wall. Open doors may swing. Cupboard doors secured by magnetic catches may open. Pendulum clocks stop, start, or change rate.
Structures :
Some large display windows cracked. A few earthenware toilet fixtures cracked.
MMI VI (Strong shaking) ?
People Felt by all. People and animals alarmed. Many run outside. Difficulty experienced in walking steadily.
Fittings :
Objects fall from shelves. Pictures fall from walls. Some furniture moved on smooth floors, some unsecured free-standing fireplaces moved. Glassware and crockery broken. Very unstable furniture overturned. Small church and school bells ring. Appliances move on bench or table tops. Filing cabinets or "easy glide" drawers may open (or shut).
Structures :
Slight damage to buildings with low standard. Some stucco or cement plaster falls. Large display windows broken. Damage to a few weak domestic chimneys, some may fall.
Environment :
Trees and bushes shake, or are heard to rustle. Loose material may be dislodged from sloping ground, e.g. existing slides, talus slopes, shingle slides.
MMI VII (Very strong shaking) ?
People
General alarm. Difficulty experienced in standing. Noticed by motorcar drivers who may stop.
Fittings :
Large bells ring. Furniture moves on smooth floors, may move on carpeted floors. Substantial damage to fragile contents of buildings.
Structures :
Unreinforced stone and brick walls cracked. Low standard buildings cracked with some minor masonry falls. A few instances of damage to buildings of ordinary workmanship. Unbraced parapets, unbraced brick gables, and architectural ornaments fall. Roofing tiles, especially ridge tiles may be dislodged. Many unreinforced domestic chimneys damaged, often falling from roof-line. Water tanks Type I burst. A few instances of damage to brick veneers and plaster or cement-based linings. Unrestrained water cylinders (hot-water cylinders) may move and leak. Some common windows cracked. Suspended ceilings damaged.
Environment :
Water made turbid by stirred up mud. Small slides such as falls of sand and gravel banks, and small rock-falls from steep slopes and cuttings. Instances of settlement of unconsolidated or wet, or weak soils. Some fine cracks appear in sloping ground. A few instances of liquefaction (i.e. small water and sand ejections).
MMI VIII (Severe shaking) ?
People Alarm may approach panic. Steering of motorcars greatly affected. Structures : Low standard buildings heavily damaged, some collapse. ordinary workmanship buildings damaged, some with partial collapse. Reinforced masonry or concrete buildings damaged in some cases. A few instances of damage to buildings and bridges designed and built to resist earthquakes. Monuments and pre-1976 elevated tanks and factory stacks twisted or brought down. Some pre-1965 infill masonry panels damaged. A few post-1980 brick veneers damaged. Decayed timber piles of houses damaged. Houses not secured to foundations may move. Most unreinforced domestic chimneys damaged, some below roof-line, many brought down. Environment : Cracks appear on steep slopes and in wet ground. Small to moderate slides in roadside cuttings and unsupported excavations. Small water and sand ejections and localized lateral spreading adjacent to streams, canals, lakes, etc.
MMI IX (Violent shaking) ?
Structures Many low standard buildings destroyed. Ordinary workmanship buildings heavily damaged, some collapse. Reinforced masonry or concrete buildings damaged, some with partial collapse. Buildings and bridges designed and built to resist earthquakes damaged in some cases, some with flexible frames seriously damaged. Damage or permanent distortion to some buildings and bridges, designed and built to normal use standards. Houses not secured to foundations shifted off. Brick veneers fall and expose frames. Environment : Cracking of ground conspicuous. Landsliding general on steep slopes. Liquefaction effects intensified and more widespread, with large lateral spreading and flow sliding adjacent to streams, canals, lakes, etc.
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