EARTHQUAKE STATISTICS

Japan earthquake statistics for October 2020

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 events111

Highest ShindoShindo 3

Largest magnitudeM6.0

Events with tsunami status0

Average magnitude3.3

Average depth34.3 km

The JISHINDESU catalogue contains 111 events for this period. The largest was M6.0, with maximum Shindo 3.

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 15
Oct 21
Oct 34
Oct 46
Oct 55
Oct 62
Oct 75
Oct 89
Oct 91
Oct 105
Oct 117
Oct 122
Oct 134
Oct 141
Oct 154
Oct 164
Oct 173
Oct 186
Oct 193
Oct 202
Oct 224
Oct 233
Oct 244
Oct 263
Oct 273
Oct 287
Oct 306
Oct 312

EARTHQUAKE STATISTICS

Events by maximum Shindo

Shindo 178 · 70.3%
Shindo 224 · 21.6%
Shindo 39 · 8.1%

EARTHQUAKE STATISTICS

Largest events by magnitude

Place names follow the available source or romanised name.