EARTHQUAKE STATISTICS

Japan earthquake statistics for October 2017

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 events140

Highest ShindoShindo 5−

Largest magnitudeM6.0

Events with tsunami status0

Average magnitude3.3

Average depth29.1 km

The JISHINDESU catalogue contains 140 events for this period. The largest was M6.0, 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 110
Oct 27
Oct 34
Oct 44
Oct 56
Oct 64
Oct 75
Oct 84
Oct 93
Oct 104
Oct 115
Oct 124
Oct 132
Oct 143
Oct 157
Oct 165
Oct 174
Oct 184
Oct 1910
Oct 203
Oct 213
Oct 225
Oct 244
Oct 257
Oct 262
Oct 275
Oct 284
Oct 295
Oct 305
Oct 312

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 189 · 63.6%
Shindo 241 · 29.3%
Shindo 39 · 6.4%
Shindo 5−1 · 0.7%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.