Japan earthquakes, down to the local station
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EARTHQUAKE STATISTICS

Japan earthquake statistics for 2021

Catalogue events, magnitude, maximum Shindo, depth and tsunami statuses for the same reporting period.

Full periodData updated:

This is a completed period, although later additions and corrections can still revise totals.

Catalogue events2,267
Highest ShindoShindo 6+
Largest magnitudeM7.2
Events with tsunami status11
Average magnitude3.3
Average depth30.4 km

The JISHINDESU catalogue contains 2,267 events for this period. The largest was M7.2, with maximum Shindo 6+.

How these statistics are calculated

We count unique earthquake records in the JISHINDESU catalogue. Corrections update the same record and cancellations follow the current catalogue state. Dates use JST; averages include records where that value exists. The tsunami count covers statuses other than ‘none’.

EARTHQUAKE STATISTICS

Events through the period

  • Jan131
  • Feb213
  • Mar160
  • Apr387
  • May146
  • Jun111
  • Jul155
  • Aug147
  • Sep145
  • Oct115
  • Nov123
  • Dec434
EARTHQUAKE STATISTICS

Events by maximum Shindo

  • Shindo 11452 · 64%
  • Shindo 2585 · 25.8%
  • Shindo 3178 · 7.9%
  • Shindo 442 · 1.9%
  • Shindo 5−4 · 0.2%
  • Shindo 5+5 · 0.2%
  • Shindo 6+1 · 0%
EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.

  1. Shindo5+Off the Coast of Miyagi PrefectureM7.260 km
  2. Shindo6+Off the Coast of Fukushima PrefectureM7.160 km
  3. Shindo2Adjacent Sea of Torishima IslandM6.610 km
  4. Shindo3Off the south Coast of Okinawa Main IslandM6.610 km
  5. Shindo5+Off the Coast of Miyagi PrefectureM6.660 km
  6. Shindo1Kurile IslandsM6.510 km
  7. Shindo2Kurile IslandsM6.310 km
  8. Shindo3Off the south Coast of TokaidoM6.2450 km
  9. Shindo3the vicinity of TaiwanM6.240 km
  10. Shindo2Off the northwest Coast of Miyakojima IslandM6.2150 km