Neha Patil

1997 Kamchatka earthquake

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Date  December 5, 1997
Magnitude  Mw 7.7
Max. intensity  VII (Very strong)
Origin time  11:26 UTC
Depth  33 km
1997 Kamchatka earthquake

The 1997 Kamchatka earthquake, or 1997 Kronotsky earthquake, occurred on December 5 at 11:26 UTC near the east coast of the Kamchatka Peninsula. It is an Mw 7.7 (7.6-7.8) earthquake and was felt with intensity MM V in Petropavlovsk-Kamchatskiy. A 60 cm (23.6 in) tsunami was recorded in Kahului, 47 cm (18.5 in.) in Hilo, and 15 cm (6 in.) in Unalaska. The local tsunami generated by this earthquake affected a mostly unpopulated region. A post-tsunami survey found runup (height above normal sea level) on the Kronotsky Peninsula was no more than a few meters. However, a later geological survey north of the peninsula, as well as an interview with a park ranger, indicate that runup was up to 8 meters (26 ft) along the coast near the Little and Big Chazhma rivers and north to the Storozh River.

Deformation during and after this earthquake was measured by GPS. There were significant foreshocks, and also an apparently independent rupture along the southern border of the primary rupture.

References

1997 Kamchatka earthquake Wikipedia


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