Magnitude 8.9 Earthquake Hits The West Coast Of Northern SUMATRA
Indonesia’s geophysical agency has registered an 8.9 M( bmkg.go.id ) > 8.7 M ( earthquake.usgs.gov ) magnitude earthquake in the Aceh region, off the coast of northern Sumatra. A tsunami warning has been issued, the US Geological Survey reports.
Tremors were felt in Singapore, Thailand, Malaysia and India. High-rise apartments and offices on Malaysia’s west coast shook for at least a minute. In Bangalore, India hundreds of office workers left their buildings, workers there said.
The U.S. Geological Survey said the powerful quake was centered 20 miles (33 kilometers) beneath the ocean floor around 308 miles (495 kilometers) from Aceh’s provincial capital.
The closest city to the quake’s epicenter is provincial capital Banda Aceh with a population of over 220,000, some 500 kilometers away.
|Depth||33 km (20.5 miles)|
|Region||OFF THE WEST COAST OF NORTHERN SUMATRA|
|Location Uncertainty||horizontal +/- 14 km (8.7 miles); depth +/- 2.8 km (1.7 miles)|
|Parameters||NST=243, Nph=243, Dmin=514.3 km, Rmss=1.67 sec, Gp= 36°,
M-type=regional moment magnitude (Mw), Version=8
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS ISSUED AT 0845Z 11 APR 2012
THIS BULLETIN IS FOR ALL AREAS OF THE INDIAN OCEAN. AN INDIAN-OCEAN-WIDE TSUNAMI WATCH IS IN EFFECT
A TSUNAMI WATCH IS IN EFFECT FOR
INDONESIA / INDIA / SRI LANKA / AUSTRALIA / MYANMAR / THAILAND / MALDIVES / UNITED KINGDOM / MALAYSIA / MAURITIUS / REUNION / SEYCHELLES / PAKISTAN / SOMALIA / OMAN / MADAGASCAR / IRAN / UAE / YEMEN / COMORES / BANGLADESH / TANZANIA / MOZAMBIQUE / KENYA / CROZET ISLANDS / KERGUELEN ISLANDS / SOUTH AFRICA / SINGAPORE
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME – 0839Z 11 APR 2012 COORDINATES – 2.0 NORTH 92.5 EAST LOCATION – OFF W COAST OF NORTHERN SUMATRA MAGNITUDE – 8.7
An official at Indonesia’s Meteorology and Geophysics Agency who goes by only one name, said a tsunami warning has been issued for Aceh, West Sumatra, North Sumatra, Lampung and Bengkulu. The tsunami is expected to reach Aceh at 4:31 p.m. local time.
The past 2 hours more 5+ M earthquakes recorded:
6.0 M – North Indian Ocean
More details to follow…