EARTHQUAKE STATISTICS

Japan earthquake statistics for May 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 events371

Highest ShindoShindo 6+

Largest magnitudeM6.3

Events with tsunami status5

Average magnitude3.2

Average depth17.7 km

The JISHINDESU catalogue contains 371 events for this period. The largest was M6.3, 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

May 117
May 24
May 33
May 42
May 547
May 615
May 79
May 86
May 99
May 108
May 1114
May 1211
May 1324
May 1420
May 1513
May 1610
May 177
May 181
May 194
May 205
May 2112
May 2240
May 2322
May 248
May 253
May 268
May 2711
May 2814
May 298
May 308
May 318

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 1223 · 60.1%
Shindo 2104 · 28%
Shindo 327 · 7.3%
Shindo 411 · 3%
Shindo 5−3 · 0.8%
Shindo 5+2 · 0.5%
Shindo 6+1 · 0.3%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.