EARTHQUAKE STATISTICS

Japan earthquake statistics for March 2021

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 events160

Highest ShindoShindo 5+

Largest magnitudeM7.2

Events with tsunami status8

Average magnitude3.5

Average depth36.5 km

The JISHINDESU catalogue contains 160 events for this period. The largest was M7.2, 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

Mar 14
Mar 23
Mar 37
Mar 42
Mar 54
Mar 65
Mar 76
Mar 88
Mar 94
Mar 104
Mar 116
Mar 125
Mar 133
Mar 144
Mar 1512
Mar 167
Mar 174
Mar 181
Mar 191
Mar 2018
Mar 2114
Mar 227
Mar 232
Mar 243
Mar 266
Mar 276
Mar 287
Mar 301
Mar 316

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 1110 · 68.8%
Shindo 237 · 23.1%
Shindo 37 · 4.4%
Shindo 44 · 2.5%
Shindo 5−1 · 0.6%
Shindo 5+1 · 0.6%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.