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EARTHQUAKE STATISTICS

Japan earthquake statistics for February 2023

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 events97
Highest ShindoShindo 5−
Largest magnitudeM6.1
Events with tsunami status0
Average magnitude3.5
Average depth37.3 km

The JISHINDESU catalogue contains 97 events for this period. The largest was M6.1, with maximum Shindo 5−.

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

  • Feb 11
  • Feb 22
  • Feb 32
  • Feb 51
  • Feb 63
  • Feb 74
  • Feb 86
  • Feb 97
  • Feb 104
  • Feb 115
  • Feb 122
  • Feb 135
  • Feb 146
  • Feb 152
  • Feb 161
  • Feb 174
  • Feb 181
  • Feb 192
  • Feb 204
  • Feb 215
  • Feb 224
  • Feb 231
  • Feb 246
  • Feb 256
  • Feb 263
  • Feb 275
  • Feb 285
EARTHQUAKE STATISTICS

Events by maximum Shindo

  • Shindo 161 · 62.9%
  • Shindo 224 · 24.7%
  • Shindo 311 · 11.3%
  • Shindo 5−1 · 1%
EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.

  1. Shindo5−Off the Coast of KushiroM6.160 km
  2. Shindo2Adjacent Sea of Okinawa Main IslandM5.110 km
  3. Shindo3Off the Coast of Fukushima PrefectureM4.960 km
  4. Shindo3Off the northwest Coast of Okinawa Main IslandM4.820 km
  5. Shindo3Central Tokachi Region, HokkaidoM4.7120 km
  6. Shindo2Off the Coast of KushiroM4.630 km
  7. Shindo3Off the Coast of Ibaraki PrefectureM4.540 km
  8. Shindo1Northern Soya Region, HokkaidoM4.5290 km
  9. Shindo1Off the northwest Coast of Ishigakijima IslandM4.4130 km
  10. Shindo1Adjacent Sea of Chichijima IslandM4.40 km