Ebino earthquake - Ebino earthquake

Japanese: えびの地震 - えびのじしん

An earthquake occurred at around 10:45 a.m. on February 21, 1968, in the Ebino Plateau, on the northwestern foot of Mount Kirishima, southwest of Miyazaki Prefecture. The epicenter was at 130°43′ east longitude and 32°01′ north latitude. The depth of the epicenter was less than 10 km, and the magnitude of the earthquake was 6.1 on the Richter scale. A strong earthquake of magnitude 6 was observed in Hitoyoshi City, Kumamoto Prefecture, near the epicenter, and was felt throughout Kyushu. Since a magnitude 5.7 earthquake had occurred two hours before this earthquake, and three earthquakes of magnitude 5.4 to 5.6 had occurred by March 25, 1968, this was thought to be a swarm of earthquakes (see Earthquake Swarm). The main shock caused 3 deaths, 42 injuries, and 1,004 houses were completely or partially destroyed. In addition, the earthquake on March 25th caused damage including 3 injuries and 165 houses being completely or partially destroyed. This area is covered with volcanic ash (shirasu), which caused many landslides and cliff collapses.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

1968年2月21日午前10時45分頃，宮崎県南西部，霧島山北西麓のえびの高原で発生した地震。震源は東経 130°43′，北緯 32°01′。震源の深さは 10kmより浅く，地震の規模はマグニチュード（M）6.1。震源地に近い熊本県人吉市で震度 6の強いゆれが観測されたほか，九州全域が有感となった。この地震の 2時間前に M5.7の地震が発生し，また同 1968年3月25日までに M5.4～5.6の地震が 3回発生していることから，群発地震的な活動と考えられた（→群発地震）。本震での被害は，死者 3人，負傷者 42人，家屋の全半壊 1004棟。このほか 3月25日の地震でも負傷者 3人，家屋の全半壊 165棟などの被害が出た。この地域は火山灰地帯（シラス）のため山崩れ，崖崩れが多発した。

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