EARTHQUAKE STATISTICS

Japan earthquake statistics for April 2015

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 events127

Highest ShindoShindo 4

Largest magnitudeM6.8

Events with tsunami status3

Average magnitude3.5

Average depth32.4 km

The JISHINDESU catalogue contains 127 events for this period. The largest was M6.8, 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

Apr 13
Apr 22
Apr 31
Apr 42
Apr 53
Apr 64
Apr 73
Apr 84
Apr 95
Apr 103
Apr 113
Apr 126
Apr 135
Apr 145
Apr 152
Apr 169
Apr 184
Apr 196
Apr 206
Apr 214
Apr 226
Apr 2310
Apr 244
Apr 255
Apr 2610
Apr 274
Apr 281
Apr 291
Apr 306

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 181 · 63.8%
Shindo 236 · 28.3%
Shindo 38 · 6.3%
Shindo 42 · 1.6%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.