This cross-section image shows the origin of the September 30, 2009 earthquake (upper green star) and an aftershock.
Using ancient corals to recover a history of earthquakes back to about AD 1300, scientists at the Observatory have identified three sites that are characterised by four earthquake "supercycles" in
Two large earthquakes, magnitude 8.6 and 8.2, struck offshore Aceh in the afternoon of 11-April-2012.
Lokon is a stratovolcano located in Sulawesi, Indonesia. It is one of the most active volcanoes in the region, with hundreds of eruptive events and ash plumes in the past decades.
The following field report was prepared by Dr. Danny Hilman Natawidjaja of the Geoteknologi Division of the Indonesian Institute of Science (LIPI).