EARTHQUAKE STATISTICS

Japan earthquake statistics for September 2017

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

Full periodData updated: Nov 7, 2026, 11:00 JST

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

Catalogue events185

Highest ShindoShindo 5+

Largest magnitudeM6.1

Events with tsunami status0

Average magnitude3.1

Average depth27.5 km

The JISHINDESU catalogue contains 185 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 15
Sep 22
Sep 31
Sep 41
Sep 56
Sep 65
Sep 75
Sep 811
Sep 924
Sep 109
Sep 116
Sep 1211
Sep 1316
Sep 148
Sep 155
Sep 164
Sep 178
Sep 184
Sep 196
Sep 204
Sep 215
Sep 224
Sep 235
Sep 246
Sep 259
Sep 264
Sep 275
Sep 282
Sep 291
Sep 303

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 1115 · 62.2%
Shindo 252 · 28.1%
Shindo 313 · 7%
Shindo 44 · 2.2%
Shindo 5+1 · 0.5%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.