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Analysis of tsunami earthquakes such as the 1946 Aleutian Islands earthquake shows that the release of seismic moment takes place at an unusually long period. Calculations of the effective moment derived from surface waves show a rapid increase with decrease in the frequency of the seismic waves, whereas for ordinary earthquakes it remains almost constant with frequency.
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 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'.
While it has generated large tsunamigenic earthquakes in the past such as that in 1899 and 1629, the fault is situated too far from Ambon to have caused huge tsunami run-ups. [ 1 ] 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 ...
The earthquake descriptions are considered consistent with a 7.6 to 8 magnitude quake given the extent of landslides and uplift. A tsunami or seiche caused by the uplift impacted the area where the sealers were. Its size has not been determined but it must have been significant (greater than 1 metre) to concern the sealers.
The rupture area of this earthquake is situated within the southern segment, where historical earthquakes include the earthquake of 1797 and the M w ~ 9.0 1833 Sumatra earthquake. [1] [10] Unlike in 2004, the tsunami caused by the October 2010 earthquake did not propagate westwards and other Indian Ocean nations were unaffected.
With the earthquake and tsunami in Japan a month before the 2011 Convention the group that holds Anime Detour had all the funds of the charity auction sent to the Red Cross for Japan Relief Effort as well as donation boxes located around the convention. Anime Detour raised $36,243.84 during the three-day convention for the relief efforts. [186]
The first earthquake occurred at 11:10:26 UTC (18:10 local time) on 12 September 2007, and was an 8.4 M w earthquake on the moment magnitude scale. [2] It had a focal depth of 34 km, at , about 130 km southwest of Bengkulu on the southwest coast of Sumatra, Indonesia, and some 600 km west-northwest of Indonesia's capital city, Jakarta