Ishikawa: A fault different from the active fault that caused the large earthquake has been confirmed in Shiga Town
In Shiga Town, Ishikawa Prefecture, where shaking with a seismic intensity of 7 was observed during the Noto Peninsula Earthquake, a fault different from the active fault that caused the major earthquake has been confirmed.
The two faults appear to have shifted almost simultaneously, and the experts who investigated said, ``Although the faults found are approximately 20 kilometers apart, they appear to have been active in conjunction with a major earthquake, and this is a very important point when considering future disaster prevention.’’ ”This is an important discovery.”
名古屋大学の鈴木康弘教授らの研究グループは、能登半島地震で震度7を観測した志賀町の北部で地面の状況を調査しました
A research group led by Professor Yasuhiro Suzuki of Nagoya University investigated the ground conditions in the northern part of Shiga town, where a magnitude 7 earthquake was observed during the Noto Peninsula earthquake.
The uplifted area is located almost in a straight line along the Togikawa South Bank Fault, which suggests that the fault that was displaced by the earthquake appeared on the surface of the earth.
The earthquake that caused the maximum seismic intensity of 7 is thought to have caused widespread displacement of an active fault along the northern coast of the Noto Peninsula, but Professor Suzuki believes that a fault approximately 20 kilometers to the south slipped at about the same time as the major earthquake. ``This is a very rare phenomenon.’’
Additionally, the confirmed fault is more than 3 kilometers long, and the area near the river mouth is uplifted, so it is possible that the fault continues offshore.
Professor Suzuki points out, ``The discovered fault appears to have been active in conjunction with a large earthquake, and this is a very important discovery when considering future disaster prevention.’’
鈴木教授は「見つかった断層は大地震に付随して活動したとみられ、今後の防災を考える上で非常に重要な発見だ」と指摘しています
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