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M5.7 Earthquake Hits Western Shizuoka, Japan, at Intensity 5-Upper

By Live Earth Watch Editors ·

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Photo: Nothing Ahead / Pexels

An earthquake of magnitude 5.7 struck the western part of Shizuoka Prefecture, Japan, around 1:04 AM on Nov. 8, 2026, local time, with a maximum seismic intensity of 5-upper, according to a summary from the independent disaster-prevention outlet Bousai X. No damage or injuries were mentioned in that summary.

It was the strongest shaking among 11 earthquakes for which a maximum seismic intensity was announced in the 24 hours to 6:00 PM on Nov. 8, the outlet reported. Bousai X said quakes also continued in the Amakusa-Ashikita region of Kumamoto Prefecture and off the coast of Fukushima Prefecture.

The Shizuoka earthquake and its neighbors

Seismic intensity measures how strongly the ground shook at a given place, while magnitude describes the size of the quake itself. The 5-upper reading is the maximum intensity recorded for the Shizuoka event. Bousai X’s list did not give a depth for any of the earthquakes.

About an hour later, around 2:03 AM, an M3.3 quake with a maximum intensity of 2 was listed for eastern Aichi Prefecture. At around 2:30 AM an M3.2 quake with intensity 1 was listed for southern Ibaraki Prefecture, and at around 2:31 AM an M2.9 quake with intensity 2 for the eastern Oshima region.

Kumamoto: an intensity 4 shake and a follow-up

In the Amakusa-Ashikita region of Kumamoto Prefecture, an M4.3 earthquake with a maximum intensity of 4 was listed around 10:53 AM. Another quake followed around 11:21 AM, listed at M2.8 with intensity 1. Earlier, around 8:23 AM, an M3.0 quake with intensity 1 was listed for the Kumamoto region of the same prefecture.

Full list of announced earthquakes, newest first

  • 11:21 AM, Nov. 8: Amakusa-Ashikita region, Kumamoto, M2.8, intensity 1
  • 10:53 AM, Nov. 8: Amakusa-Ashikita region, Kumamoto, M4.3, intensity 4
  • 8:23 AM, Nov. 8: Kumamoto region, Kumamoto, M3.0, intensity 1
  • 7:38 AM, Nov. 8: off Fukushima Prefecture, M3.9, intensity 2
  • 2:31 AM, Nov. 8: eastern Oshima region, M2.9, intensity 2
  • 2:30 AM, Nov. 8: southern Ibaraki Prefecture, M3.2, intensity 1
  • 2:03 AM, Nov. 8: eastern Aichi Prefecture, M3.3, intensity 2
  • 1:04 AM, Nov. 8: western Shizuoka Prefecture, M5.7, intensity 5-upper
  • 12:42 AM, Nov. 8: off Iwate Prefecture, M4.1, intensity 1
  • 10:48 PM, Nov. 7: off Fukushima Prefecture, M3.6, intensity 1
  • 8:07 PM, Nov. 7: off Ibaraki Prefecture, M5.6, intensity 3

The summary recorded no distant earthquake reports for the period.

Why it matters: ongoing activity in several regions

The list shows shaking reported across several parts of Japan within one day, from Kumamoto in the southwest to the Pacific coast off Fukushima, Ibaraki and Iwate in the northeast. Two events reached M5 or higher: the M5.7 quake in Shizuoka and the M5.6 quake off Ibaraki on the evening of Nov. 7, which had a maximum intensity of 3.

Bousai X noted that even when earthquakes continue in one region, the size and timing of the next one cannot be predicted. The outlet advised readers to follow announcements from the Japan Meteorological Agency and local governments. It also said earthquake information is subject to change and pointed readers to those agencies and to utility providers for the latest updates.

Bousai X is an independent outlet, not a government agency. Readers in affected areas should rely on the Japan Meteorological Agency and their local authorities for official figures and instructions.

Source: note

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