1855 Ansei Edo earthquake
 |
|
| Date | November 11, 1855 |
|---|---|
| Magnitude | 7.0 Ms |
| Epicenter | 35°39′N 139°48′E / 35.65°N 139.8°ECoordinates: 35°39′N 139°48′E / 35.65°N 139.8°E |
| Areas affected | Japan, Tokyo |
| Tsunami | minor |
| Casualties | ~7,000 |
The 1855 Edo earthquake (安政江戸地震 Ansei Edo Jishin?), also known as the Great Ansei earthquake, was one of the major disasters of the late-Edo period. The earthquake occurred at 22:00 local time on 11 November. It had an epicenter close to Edo (now Tokyo), causing considerable damage in the Kantō region from the shaking and subsequent fires, with a death toll of 7,000-10,000 people and destroyed around 14,000 buildings. The earthquake had a magnitude of 7.0 on the surface wave magnitude scale and reached a maximum intensity of XI (Extreme) on the Mercalli intensity scale. The earthquake triggered a minor tsunami.
The Kanto area lies above a complex part of the convergent boundaries between the subducting Pacific and Philippine Sea Plates and the overriding Eurasian and North American Plates. Earthquakes with epicenters in the Kanto region may occur within the Eurasian Plate, at the Eurasaian Plate/Philippine Sea Plate interface, within the Philippine Sea Plate, at the Philippine Sea Plate/North American Plate interface (under the Sagami Trough), at the Philippine Sea Plate/Pacific Plate interface (Izu-Bonin-Mariana Arc), or within the Pacific Plate. In addition to this set of major plates it has been suggested that there is also a separate 25 km thick, 100 km wide body, a fragment of Pacific Plate lithosphere.
...
Wikipedia