Magnitude 9.1 OFF THE WEST COAST OF NORTHERN SUMATRA
Sunday, December 26, 2004 at 00:58:53 UTC
The following is a revised REPEAT revised release by the United States Geological Survey, National Earthquake Information Center: A great earthquake occurred OFF THE WEST COAST OF NORTHERN SUMATRA, INDONESIA, about 250 km (155 miles) south-southeast of Banda Aceh, Sumatra or about 1260 km (780 miles) south-southwest of Bangkok, Thailand at 5:58 PM MST yesterday, Dec 25, 2004 (Dec 26 at 7:58 AM local time in Indonesia). A REVISED MAGNITUDE OF 9.0 WAS COMPUTED FOR THIS EARTHQUAKE. The magnitude of this earthquake has been revised to 9.0 based on additional data. This is now the fourth largest earthquake in the world since 1900 and is the largest since the 1964 Prince William Sound, Alaska earthquake. The magnitude was furnished by the Dept. of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts.
This is the fourth largest earthquake in the world since 1900 and is the largest since the 1964 Prince William Sound, Alaska earthquake. In total, more than 283,100 people were killed, 14,100 are still listed as missing and 1,126,900 were displaced by the earthquake and subsequent tsunami in 10 countries in South Asia and East Africa. The earthquake itself caused severe damage and casualties in northern Sumatra, Indonesia and in the Nicobar Islands, India. It was felt (IX) at Banda Aceh, (VIII) at Meulaboh and (IV) at Medan, Sumatra; (VII) at Port Blair, Andaman Islands, India; (III-V) in parts of Bangladesh, mainland India, Malaysia, Maldives, Myanmar, Singapore, Sri Lanka and Thailand. The tsunami caused more casualties than any other in recorded history and was recorded nearly world-wide on tide gauges in the Indian, Pacific and Atlantic Oceans. At least 108,100 people were killed and 127,700 are missing and presumed killed by the earthquake and tsunami in Indonesia. Tsunamis killed at least 30,900 people in Sri Lanka, 10,700 in India, 5,300 in Thailand, 150 in Somalia, 90 in Myanmar, 82 in Maldives, 68 in Malaysia, 10 in Tanzania, 3 in Seychelles, 2 in Bangladesh and 1 in Kenya. Tsunamis caused damage in Madagascar and Mauritius and caused minor damage at two places on the west coast of Australia. Seiches were observed in India and the United States and water level fluctuations occurred in wells in various parts of the United States. Subsidence and landslides were observed in Sumatra. A mud volcano near Baratang, Andaman Islands became active on December 28 and gas emissions were reported in Arakan, Myanmar. (last updated 2/15/05).