Kamchatka earthquakes

This boundary accommodates both active shortening and right lateral strike-slip across a series of large SW–NE trending faults.

[5] An earthquake of estimated magnitude 9.0 Mw , with an epicenter just offshore, which triggered a large tsunami.

[6] On February 3, 1923, an estimated magnitude 8.3–8.5 Mw earthquake with an approximate location of 54°00′N 161°00′E / 54.0°N 161.0°E / 54.0; 161.0 triggered a 25-foot tsunami that caused considerable damage in Kamchatka, with a reported 3 deaths.

[10] A large tsunami resulted,[11] causing destruction and loss of life around the Kamchatka peninsula and the Kuril Islands.

Hawaii was also struck, with estimated damage of up to US$1 million and livestock losses, but no human casualties were recorded.

[11] A magnitude Mw  8.0 earthquake occurred on May 4, at a hypocentral depth of 20 km, with a maximum felt intensity of VIII MSK.

[18] This shock was a result of near-trench intraplate compressional faulting within the descending Pacific plate.

[19] In Petropavlovsk-Kamchatsky, 285 miles (460 km) away from the epicenter the intensity was felt at 5, objects were falling in buildings and people ran out into the street for safety.