EARTHQUAKE STATISTICS

Japan earthquake statistics for March 2023

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 events107

Highest ShindoShindo 4

Largest magnitudeM6.1

Events with tsunami status1

Average magnitude3.5

Average depth31.0 km

The JISHINDESU catalogue contains 107 events for this period. The largest was M6.1, with maximum Shindo 4.

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

Mar 11
Mar 28
Mar 33
Mar 47
Mar 52
Mar 64
Mar 72
Mar 81
Mar 94
Mar 102
Mar 112
Mar 126
Mar 132
Mar 148
Mar 155
Mar 161
Mar 183
Mar 193
Mar 204
Mar 213
Mar 224
Mar 233
Mar 246
Mar 252
Mar 263
Mar 272
Mar 283
Mar 295
Mar 304
Mar 314

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 165 · 60.7%
Shindo 230 · 28%
Shindo 38 · 7.5%
Shindo 44 · 3.7%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.