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In seismology, a tsunami earthquake is an earthquake which triggers a tsunami of significantly greater magnitude, as measured by shorter-period seismic waves. The term was introduced by Japanese seismologist Hiroo Kanamori in 1972. [1] Such events are a result of relatively slow rupture velocities. They are particularly dangerous as a large ...
Severe shaking from this earthquake was recorded from the Bōsō Peninsula in the northeast to the Kii Peninsula in the southwest. A tsunami was recorded in Suruga Bay and at Kamakura, where it destroyed the building housing the statue of the Great Buddha at Kōtoku-in, [9] although the statue itself survived and has remained outdoors ever since.
The subduction zone is associated with at least two known ~9.0 M w earthquakes in the pre-instrumental period; 1737 and 1841. [6] The 1737 earthquake measured M w 9.0–9.3, and generated the largest known tsunami (60 meters) on the peninsula. [7] Another M w 9.0 earthquake struck the peninsula on May 17, 1841. It generated a tsunami up to 15 ...
Since the tsunami from the earthquake had an extreme run-up height of at least 100 metres (330 ft) observed locally on the northern shore of Ambon, researchers have dismissed the possibility of faulting as a source of the tsunami. Instead, an earthquake-generated landslide appears to be the likely source of the tsunami. However, the source of ...
The tsunami washed away a further 15,000 houses and a total of 3,000 people died from either the earthquake or the tsunami. [6] The death toll associated with the tsunami was less than would be expected in comparison to the 1707 tsunami , because many people had left the coastal area following the large earthquake the previous day. [ 7 ]
The 1611 Sanriku earthquake (慶長三陸地震, Keichō Sanriku Jishin) occurred on December 2, 1611, with an epicenter off the Sanriku coast in Iwate Prefecture, Japan. The magnitude of the earthquake was 8.1 M s. [1] [3] It triggered a devastating tsunami. A description of this event in an official diary from 1612 is probably the first ...
A tsunami, likely triggered by an undersea landslide located 60–70 km (37–43 mi) off the coast of Jiwani, was recorded by tide gauges in countries surrounding the Arabian Sea. A tide gauge in Qurayyat, Oman, recorded a 1.09 m (3 ft 7 in) tsunami wave, the highest tsunami observation, and in Muscat, the tsunami measured 0.51 m (1 ft 8 in ...
The 1833 Sumatra earthquake occurred on November 25 at about 22:00 local time, with an estimated magnitude in the range of 8.8–9.2 M w . It caused a large tsunami that flooded the southwestern coast of the island. There are no reliable records of the loss of life, with the casualties being described only as 'numerous'.