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UTC time | 1922-12-07 16:50:17 |
---|---|
ISC event | |
912099 | |
912102 | |
USGS-ANSS | |
ComCat | |
ComCat | |
Local date | December 8, 1922 |
Magnitude | M6.9 |
Epicenter | 32°42′N 130°06′E / 32.7°N 130.1°E [1] |
Type | Doublet earthquake |
Casualties | 27 dead [2][3] |
The 1922 Shimabara earthquake (Japanese: 島原地震) occurred in Kyushu, Japan on December 8, 1922.[4] The mainshock (M6.9) was followed by a large aftershock (M6.5) 9 hours later.[5]
At 01:50 a.m. on December 8, 1922 (local time), an M6.9 earthquake occurred in Tachibana Bay , Nagasaki Prefecture, Japan. About 9 hours later, at 11:02 a.m., the largest aftershock of M6.5 occurred in almost the same location as the first earthquake.
Type of event | Date and time (JST) | Epicenter | Depth | Magnitude |
---|---|---|---|---|
Main shock | 1922/12/08 01:50 | 32°41.6′N 130°02.2′E / 32.6933°N 130.0367°E[6] | 19 km | M6.9 |
Largest aftershock | 1922/12/08 11:02 | 32°45.1′N 130°07.5′E / 32.7517°N 130.1250°E[7] | 0 km | M6.5 |
The damage was severe in southern Nagasaki Prefecture (Shimabara Peninsula) and western Kumamoto Prefecture.[1][2][8] In Nagasaki Prefecture, 26 people died of which 3 were due to the largest aftershock.[1] The earthquake caused cracks in the ground and landslides. More than 2,000 houses were damaged.[9][10][11]