At the Boston College's Weston Observatory, they monitor seismic data from around the globe, and recorded the strong tremors across the world as the devastating earthquake struck Japan. They've been closely monitoring the situation, and claim the 8.9-magnitude quake was the world's 5th strongest in the last 100 years or so. Read more
University of Leicester geologists trace readings from Japan earthquake
University of Leicester geologists have recorded the impact of the earthquake, off the coast of Japan, using sophisticated equipment in the Department of Geology. The Magnitude 8.9 Earthquake East of Honshu on 11/3/11 was recorded on a SEIS-UK seismometer. It shows three traces that measure movement of the Earth's surface in the vertical, north-south and east-west direction. SEIS-UK is part of the Natural Environment Research Council's Geophysical Equipment Facility. Read more
Japan Earthquake: Tsunami wave sweeps Sendai airport
Sendai, a city of one million, was closest to the epicentre of the earthquake. CCTV footage captured the moment a tsunami wave swept across Sendai airport. Read more
The first wave of the tsunami passed through Midway Island - a small atoll at the north-western end of the Hawaiian archipelago - at about 1125 GMT, bringing a wave of more than 8ft, the local Star Advertiser newspaper reported.
The following list gives estimated times of arrival for locations along the North American Pacific coast from a tsunami generated at the given source location. The list is ordered by arrival time starting with the earliest.
King Cove, Alaska 0255 AKST MAR 11 1155 UTC MAR 11 Sand Point, Alaska 0257 AKST MAR 11 1157 UTC MAR 11 Perryville, Alaska 0319 AKST MAR 11 1219 UTC MAR 11 DART 46410 0319 AKST MAR 11 1219 UTC MAR 11 Cold Bay, Alaska 0329 AKST MAR 11 1229 UTC MAR 11 Chignik Bay, Alaska 0350 AKST MAR 11 1250 UTC MAR 11 Cape Suckling, Alaska (75 miles SE of Cordova) 0351 AKST MAR 11 1251 UTC MAR 11 Kodiak, Alaska 0351 AKST MAR 11 1251 UTC MAR 11 Old Harbor, Alaska 0353 AKST MAR 11 1253 UTC MAR 11 Hinchinbrook Entrance, Alaska (90 miles E of Se 0401 AKST MAR 11 1301 UTC MAR 11 Seward, Alaska 0416 AKST MAR 11 1316 UTC MAR 11 Alitak, Alaska 0417 AKST MAR 11 1317 UTC MAR 11 Elfin Cove, Alaska 0418 AKST MAR 11 1318 UTC MAR 11
Japan's earthquake and tsunami explained A massive earthquake has hit the north-east of Japan, triggering a tsunami that has caused extensive damage. Seismologist Dr Roger Musson explains how the enormous tsunami was triggered. Read more