Post disaster satellite imagery of Padang earthquake

These imagery provided by The "Center for Satellite Based Crisis Information" (ZKI). ZKI is a service of DLR's German Remote Sensing Data Center (DFD). Its function is the rapid acquisition, processing and analysis of satellite data and the provision of satellite-based information products on natural and environmental disasters, for humanitarian relief activities, as well as in the context of civil security. The analyses are tailored to meet the specific requirements of national and international political bodies as well as humanitarian relief organizations.

This posting is purely intend to provide information needed for the Padang earthquake relief, copyright of the imagery are belongs to The "Center for Satellite Based Crisis Information" (ZKI)

Potential Building Damage: Map of Padang, Indonesia, 1:20.000

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Population Map of Padang, Indonesia, Southern Part, with building damages as of October 1, 2009, 1:15.000

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Population Map of Padang, Indonesia, Northern part, with building damages as of October 1, 2009, 1:15.000

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Situation Map of Padang, Indonesia, Northern part, with building damages as of October 1, 2009, 1:15.000

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Situation Map of Padang, Indonesia, Southern Part, with building damages as of October 1, 2009, 1:15.000

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Magnitude 6.6 South Sumatra Earthquake following September 30, West Sumatra earthquake

Magnitude 6.6 struck South Sumatra region on Thursday, October 01, 2009 at 08:52:29 AM local time. The epicenter located 270 km southeast of the damaging M 7.6 earthquake of September 30, 2009 offshore Padang at position 2.589°S, 101.546°E. It is not clear at present if these events are related but there is a big possibility that the Padang earthquake triggering the October 1st earthquake. Hundreds buildings collapse while fatalities are not reported yet but expected to rise.

According to USGS, the October 1st, 2009 Mw6.6 earthquake in southern Sumatra occurred as a result of shallow strike-slip faulting within the Sunda Plate. In the epicentral region of this earthquake, the Australian plate moves northwestwards with respect to the Sunda Plate at a rate of approximately 65 mm/yr. Oblique convergence at the trench, to the west of this earthquake, is partitioned between thrust motion on the subduction zone interface and strike-slip motion in the upper plate, near the Sumatra Fault. Todays earthquake is likely related to the latter strike-slip component of this motion, accommodating the northward motion of the Sunda block with respect to the interior of the Eurasian Plate. On the basis of the currently available fault mechanism information and a depth of 15 km, it is likely that this earthquake occurred along the Sumatran Fault or on a closely related structure. The recent earthquake is consistent with NW-directed, right-lateral displacement along the Sumatran Fault system.

Links:
Intensity Map

Magnitude 7.6 earthquake hits Padang, West Sumatra

A powerful earthquake rocked western Indonesia Wednesday, trapping thousands under collapsed buildings — including two hospitals — and triggering landslides. At least 75 people were killed; the death toll was expected to rise. (Update: The official release on October2, a total of 1100 people were confirmed dead and 421 seriously injured, these numbers are still expected to rise along with the search and rescue progress.)

The magnitude 7.6 quake struck at 5:15 p.m. local time (1015GMT, 6:15 a.m. EDT), just off the coast of Padang city at position 0.789°S, 99.961°E. A tsunami warning for countries along the Indian Ocean was issued, and panicked residents fled to higher ground fearing giant waves. The warning was lifted about an hour later.

Initial reports received by the government said 75 people were killed, but the real number is expected to rise shortly.

The quake triggered landslides that cut all roads to Padang. Power and telecommunications were also cut. Fire also broke out in buildings on a road to the city, officials said.

Links:
The intensity Map
Moment tensor solution
Population exposure


Figure:
A man stands in front of a collapsed building after an earthquake hit Padang, on Indonesia's Sumatra island September 30, 2009 (Reuters)

A magnitude 7.0 Earthquake Strikes West Java

A magnitude of 7.0 earthquake killed at least 32 people and forced thousands to evacuate on Indonesia's main island of Java on Wednesday, September 02, 2009 at 02:55:01 PM local time. The death toll was expected to rise . Over 3,586 homes were damaged. The epicenter of the quake was 195km south of Jakarta and 95km south of Bandung city in the position of 7.778°S, 107.328°E with the uncertainty of horizontal +/- 6.6 km (4.1 miles); depth +/- 12.3 km (7.6 miles).

The 7.0 magnitude quake, as recorded by the U.S. Geological Survey, shook buildings in the capital Jakarta and flattened homes in villages closer to the epicenter in West Java. The quake was felt over roughly half of Java Island. In the capital, Jakarta, 120 miles (190 kilometers) from the epicenter, office workers ran onto the streets. A tsunami warning was issued after the quake struck, but revoked an hour later.

The worst report of fatalities was from a village in Cianjur district, where about 30 people were still believed trapped under rocks and dirt after a landslide triggered by the tremor buried their homes.

Update: on Thursday (September3, 2009 afternoon) the government report that the total casualties in the entire West Java Province reaches the number of 54, 147 peoples wounded and 10.000 evacuated. The construction damaged includes 34 homes totally destroyed, 11.000 heavily destroyed and light damage on 15.000 houses.

A video: Life in the shadow of Indonesia's volcanoes - 01 July 2008

In Indonesia, many people live close to active and dangerous volcanoes. On Java island alone, around 120 million people live in the shadows of more than 30 volcanoes.

Al Jazeera's David Hawkins reports.

5.9-magnitude earthquake hits North Sulawesi

A magnitude of 5.9 jolted North Sulawesi on Thursday, July 02, 2009 at 05:10:45 AM local time. There was no immediate report of casualties or material damage. The epicenter was located at a depth of 23 kilometers below sea level, 107 kilometers southeast of Bitung, which lies 50 kilometers to the east of North Sulawesi's capital Manado.

Local meteorology and geophysics agency (BMG) said that the quake did not have the potential to cause a tsunami and its magnitude was felt by people in Bitung, Minahasa, Minahasa Selatan, Manado as well as the islands of Sangihe and Talaud.

Previously, at 06:59 a.m. Friday, June 5, 2009, at the same area, a magnitude 5 earthquake occurred, no damage was reported. On Tuesday, June 30, a magnitude 3.0 occurred at the Kendari gulf, 15 kilometers from Kendari, Southeast Sulawesi.