What is the national average of Earthquakes recorded at intensity 4+ (by year, by prefecture)?

The simple average across all 47 prefectures is 0times (2026), based on JMA — Seismic Intensity Database + Nippon Pulse earthquake observation archive.

Climate · National ranking

Earthquakes recorded at intensity 4+ (by year, by prefecture)

Name: Earthquakes recorded at intensity 4+ (by year, by prefecture) national ranking 2026
Creator: Nippon Pulse
License: https://www.nippon-pulse.com/terms
Keywords: Earthquakes recorded at intensity 4+ (by year, by prefecture),47 prefectures,ranking,Climate,JMA — Seismic Intensity Database + Nippon Pulse earthquake observation archive

2026Unit: timeslower is better

Annual count of earthquakes recording seismic intensity 4+ within the prefecture. A composite metric (seismic activity + observation-network density) that also reflects differences in network density.

Source: JMA — Seismic Intensity Database + Nippon Pulse earthquake observation archive

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In 2026, Iwate recorded the highest Earthquakes recorded at intensity 4+ (by year, by prefecture) (3times) and Kochi the lowest (0times) among Japan's 47 prefectures. The simple 47-prefecture average is 0times. Source: JMA — Seismic Intensity Database + Nippon Pulse earthquake observation archive.

47IwateTohoku3times
46AomoriTohoku2times
39AkitaTohoku1times
39HokkaidoHokkaido1times

FAQ — Earthquakes recorded at intensity 4+ (by year, by prefecture)

Which prefecture has the highest Earthquakes recorded at intensity 4+ (by year, by prefecture) in Japan?: As of 2026, Iwate has the highest Earthquakes recorded at intensity 4+ (by year, by prefecture) at 3times among all 47 prefectures.
Which prefecture has the lowest Earthquakes recorded at intensity 4+ (by year, by prefecture)?: Kochi has the lowest Earthquakes recorded at intensity 4+ (by year, by prefecture) at 0times (2026).
What is the national average of Earthquakes recorded at intensity 4+ (by year, by prefecture)?: The simple average across all 47 prefectures is 0times (2026), based on JMA — Seismic Intensity Database + Nippon Pulse earthquake observation archive.

▲ The top 5 prefectures are tinted sky, ▼ the bottom 5 amber — just enough colour to follow the two ends of the “desirable direction.”

To see the same metric on the map, pick it from the map on the home page.

FAQ — Earthquakes recorded at intensity 4+ (by year, by prefecture)

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