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DAILY EARTHQUAKE ARCHIVE

Earthquakes in Japan on August 3, 2026

Replay earthquakes recorded on this day at their actual occurrence times and inspect every available report.

earthquakes
19
strongest Shindo
3
largest magnitude
M4.3
Shindo 1+ events
19

Replay one day of earthquakes

2026-08-03 · JST00:00:00Pause
Shindo12345−5+6−6+7
00:0006:0012:0018:0024:00
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JISHINDESU catalogue organised from JMA and P2PQuake data. Times use JST. Points are reported epicentres and observations, not simulated wave propagation.

Reading the daily record

How to read the record for August 3, 2026

The JISHINDESU catalogue contains 19 earthquakes for this day; 19 reached maximum Shindo 1 or higher. The day's highest Shindo was 3, and its largest reported magnitude was M4.3.

Earthquake with the day's highest ShindoKumamoto Region, Kumamoto Prefecture06:58:00 JST · M2.8 · Shindo 3
01

Catalogue time, not a wave simulation

The replay reveals reports at their recorded JST origin times. Station dots show observed Shindo, but the moment they appear is not a measured seismic-wave arrival time.

02

Shindo and magnitude measure different things

Magnitude describes the earthquake at its source; Shindo describes shaking at each station. One earthquake can therefore produce different Shindo readings by location.

Shindo and magnitude explained →
03

A record can be updated later

Follow-up bulletins and corrections for the same earthquake are consolidated into one record. Each report page shows the current values and any available revision history.

Data and methodology →
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Daily record

Earthquake reports

19 earthquakes · Shindo 3 · M4.3

August 3, 2026

  1. 震度1Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方00:25 JSTRevision 2M2.3Depth: 10 km
  2. 震度1Kumamoto Region, Kumamoto Prefecture熊本県熊本地方00:26 JSTRevision 2M2.9Depth: 10 km
  3. 震度1Kumamoto Region, Kumamoto Prefecture熊本県熊本地方04:17 JSTRevision 2M1.5Depth: 10 km
  4. 震度2Off the east Coast of Hokkaido北海道東方沖05:02 JSTRevision 2M4.3Depth: 20 km
  5. 震度1Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方05:53 JSTRevision 2M2.6Depth: 0 km
  6. 震度2Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方06:41 JSTRevision 2M3.1Depth: 10 km
  7. 震度3Kumamoto Region, Kumamoto Prefecture熊本県熊本地方06:58 JSTRevision 2M2.8Depth: 10 km
  8. 震度1Kumamoto Region, Kumamoto Prefecture熊本県熊本地方08:12 JSTconfirmedM2.3Depth: 10 km
  9. 震度1Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方11:33 JSTRevision 2M2.6Depth: 10 km
  10. 震度1Kumamoto Region, Kumamoto Prefecture熊本県熊本地方12:21 JSTRevision 2M2.5Depth: 10 km
  11. 震度2Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方13:32 JSTRevision 2M3.7Depth: 10 km
  12. 震度1Off the Coast of Urakawa浦河沖14:30 JSTRevision 2M3.7Depth: 60 km
  13. 震度2Aizu, Fukushima Prefecture福島県会津15:00 JSTRevision 2M3.1Depth: 10 km
  14. 震度1Kumamoto Region, Kumamoto Prefecture熊本県熊本地方16:24 JSTRevision 2M3.0Depth: 10 km
  15. 震度1Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方17:54 JSTRevision 3M2.6Depth: 10 km
  16. 震度1Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方20:10 JSTRevision 2M2.6Depth: 10 km
  17. 震度1Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方20:21 JSTRevision 2M3.1Depth: 10 km
  18. 震度1Adjacent Sea of Okinawa Main Island沖縄本島近海22:21 JSTRevision 2M3.1Depth: 30 km
  19. 震度1Off the southeast Coast of the Nemuro Peninsula根室半島南東沖23:39 JSTRevision 2M4.3Depth: 70 km