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EARTHQUAKE STATISTICS

Japan earthquake statistics for September 2020

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 events128
Highest ShindoShindo 5−
Largest magnitudeM6.1
Events with tsunami status0
Average magnitude3.5
Average depth32.1 km

The JISHINDESU catalogue contains 128 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

  • Sep 12
  • Sep 24
  • Sep 33
  • Sep 410
  • Sep 56
  • Sep 67
  • Sep 78
  • Sep 85
  • Sep 92
  • Sep 104
  • Sep 113
  • Sep 1214
  • Sep 134
  • Sep 147
  • Sep 159
  • Sep 164
  • Sep 174
  • Sep 181
  • Sep 194
  • Sep 202
  • Sep 213
  • Sep 232
  • Sep 251
  • Sep 265
  • Sep 276
  • Sep 281
  • Sep 293
  • Sep 304
EARTHQUAKE STATISTICS

Events by maximum Shindo

  • Shindo 181 · 63.3%
  • Shindo 229 · 22.7%
  • Shindo 314 · 10.9%
  • Shindo 43 · 2.3%
  • Shindo 5−1 · 0.8%
EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.

  1. Shindo4Off the Coast of Miyagi PrefectureM6.140 km
  2. Shindo4Adjacent Sea of Chichijima IslandM5.510 km
  3. Shindo4Western Shizuoka PrefectureM5.350 km
  4. Shindo3Off the Coast of Ibaraki PrefectureM5.220 km
  5. Shindo3Off the Coast of Miyagi PrefectureM5.040 km
  6. Shindo5−Reihoku, Fukui PrefectureM5.010 km
  7. Shindo2Off the Coast of Fukushima PrefectureM5.010 km
  8. Shindo1the vicinity of TaiwanM4.9100 km
  9. Shindo1Adjacent Sea of Yonagunijima IslandM4.830 km
  10. Shindo3Off the southeast Coast of the Nemuro PeninsulaM4.850 km