EARTHQUAKE STATISTICS

Japan earthquake statistics for October 2018

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 events172

Highest ShindoShindo 5−

Largest magnitudeM6.3

Events with tsunami status1

Average magnitude3.5

Average depth32.9 km

The JISHINDESU catalogue contains 172 events for this period. The largest was M6.3, 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

Oct 18
Oct 26
Oct 35
Oct 44
Oct 55
Oct 68
Oct 77
Oct 84
Oct 99
Oct 106
Oct 117
Oct 124
Oct 135
Oct 144
Oct 159
Oct 167
Oct 176
Oct 188
Oct 193
Oct 206
Oct 214
Oct 225
Oct 234
Oct 245
Oct 252
Oct 265
Oct 278
Oct 284
Oct 297
Oct 304
Oct 313

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 196 · 55.8%
Shindo 249 · 28.5%
Shindo 316 · 9.3%
Shindo 410 · 5.8%
Shindo 5−1 · 0.6%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.