The magnitude 7.6 quake that struck on New Year＊s Day was caused by a movement of active faults in the sea off Ishikawa Prefecture＊s Noto Peninsula that had been dormant for 3,000 to 4,000 years, Japanese experts have said.
Researchers told a symposium hosted by Tohoku University on Tuesday that the slipping of a belt of active faults on the Noto Peninsula and the Sea of Japan explained the big jolt 〞 which registered a 7 on the Japanese seismic intensity scale, the maximum level 〞 as well as a tsunami that hit the shores soon afterward.
※While each active fault is short, a group of them have formed a band stretching over 100 kilometers,§ said Shinji Toda, a seismologist at the university. ※The active faults are right beneath the peninsula, and also in the sea, thus causing the strong jolt on the ground and the big tsunami.§
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