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EARTHQUAKE STATISTICS

Japan earthquake statistics for 2018

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 events2,048
Highest ShindoShindo 6+
Largest magnitudeM6.7
Events with tsunami status6
Average magnitude3.4
Average depth30.0 km

The JISHINDESU catalogue contains 2,048 events for this period. The largest was M6.7, 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

  • Jan130
  • Feb104
  • Mar161
  • Apr170
  • May157
  • Jun190
  • Jul154
  • Aug125
  • Sep350
  • Oct172
  • Nov195
  • Dec140
EARTHQUAKE STATISTICS

Events by maximum Shindo

  • Shindo 11280 · 62.5%
  • Shindo 2525 · 25.6%
  • Shindo 3170 · 8.3%
  • Shindo 462 · 3%
  • Shindo 5−6 · 0.3%
  • Shindo 5+2 · 0.1%
  • Shindo 6−1 · 0%
  • Shindo 6+1 · 0%
EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.

  1. Shindo6+Central and eastern Iburi Region, HokkaidoM6.740 km
  2. Shindo1Adjacent Sea of Ioto IslandM6.60 km
  3. Shindo3Adjacent Sea of Yonagunijima IslandM6.320 km
  4. Shindo4Adjacent Kunashiri IslandM6.20 km
  5. Shindo4Off the east Coast of Aomori PrefectureM6.230 km
  6. Shindo3Adjacent Sea of Yonagunijima IslandM6.130 km
  7. Shindo3Off the east Coast of Hachijojima IslandM6.140 km
  8. Shindo5−Off the east Coast of Chiba PrefectureM6.050 km
  9. Shindo—Off the east Coast of Hachijojima IslandM6.00 km
  10. Shindo1Off the west Coast of Ogasawara IslandsM5.9480 km