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Japan: Earthquake: 2026/04/20 Country Information on DRR

GLIDE:  EQ-2026-000057-JPN

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GDACS

Period 2026/04/20
Country or District Japan
Event Type Earthquake
Outline A tsunami warning, with waves of up to 3 meters forecast, was issued Monday evening of 20 April 2026 for Iwate and Aomori prefectures and Hokkaido in northern Japan after a M7.5 (later modified to M7.7) powerful quake struck off the coast of Iwate.
Summary
Human Impact Physical Impact Others

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Report/Articles

NHK World: 2026/04/20
The government says over 171,957 residents in Hokkaido, Aomori, Iwate, Miyagi and Fukushima prefectures had been ordered to evacuate as of 6:45 p.m. on Monday. Also alert for potential mega-quake has been issued.

The Japan Times 2026/04/20
Tsunami hit Iwate, Aomori and Hokkaido after powerful quake

Geographycal Data

JMA 2026/04/20
Date and Time: 2026/04/20 16:53 (local time), Magunitude: 7.5, Epicenter: Off the Coast of Sanriku, Depth: 10km