Calamity
MediumEarthquakesCalamity Score: 18

Earthquakes in Ryukyu Islands, Japan

JapanEMSC

Right now

The most recent data we hold from EMSC arrived 61 minutes ago, and this point is in it.

One other detection within 20 km in the last 24 hours, 7 km from here.

Reported by EMSC today.

It is one of only 2 we have recorded within 20 km of this point since 12 September 2026.

What the source measured

EMSC reported: RYUKYU ISLANDS, JAPAN

EMSC recorded magnitude 5.3 at a depth of 26 km.

The seismic region given by the source is RYUKYU ISLANDS, JAPAN.

How we know

Confirmed by 2 independent sources, including EMSC.

Our own score for this event is 18 out of 100, at 67 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeEarthquakes
SeverityMedium
Calamity Score (ours)18 / 100
Our confidence67%
Coordinates29.3761, 130.3302
Nearest CityAmami (138 km)
Impact Tierminor
Timestamp2026-09-12T20:32:58.430Z
Sourcehttps://www.seismicportal.eu/eventdetail.html?unid=20260912_0000304

Score Breakdown

26
intensity
0
population
0
cascading
80
historical

Technical Details

Mag5.3
Depth26
MagTypemb
RegionRYUKYU ISLANDS, JAPAN
AuthEMSC
SourceId2059467
Gfz Mag5.28
Gfz Depth10
Gfz MagTypemb
Gfz RegionRyukyu Islands, Japan
MergedSources[{"id":"gfz_gfz2026rxql","source":"gfz","severity":"medium","severityValue":42.24,"timestamp":1789245175810,"latitude":29.183,"longitude":130.416}]

Safety Information

If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.

Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.

This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.

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