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About earthquake information of Yokohama-shi

Final update date March 19, 2021

In Motoichi, we use seismic intensity based on its own seismograph and a memorandum of understanding with Tokyo Gas Co., Ltd. on joint research on earthquake disaster prevention measures between Yokohama City and Tokyo Gas (concluded on March 31, 2008) We utilize two earthquake information of seismic intensity information from Tokyo Gas. You can check each earthquake information from the link below.
※Currently, we have stopped linking data to operated by Tokyo Gas due to system maintenance of Motoichi seismometer.
It is scheduled to resume in March.

Yokohama City Seismic Meter Network

Yokohama City Earthquake Information (Tokyo Gas Earthquake Information) (External Site)

Inquiries to this page

General Affairs Bureau Crisis Management Department Emergency Response Division

Telephone: 045-671-206464

Telephone: 045-671-206464

Fax: 045-641-16777

Email address: [email protected]

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Page ID: 269-23642

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