Calamity
LowEarthquakesCS: 3 · v5

Earthquakes in Japan

JapanJMA

Right now

The most recent data we hold from JMA arrived 20 hours ago, and this point is in it.

One other detection within 20 km in the last 24 hours, 12 km from here.

Reported by JMA today.

It is the 7th strongest of the 13 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.

What the source measured

JMA reported: 20260914200253

Nearby, since 9 March 2026

How we know

4 recorded sources include JMA; independence is not established by this count.

Our own score for this event is 3 out of 100.

This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.

Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeEarthquakes
SeverityLow
Calamity Score (ours)3 / 100
Legacy data-support index0.72/1
Coordinates37.5000, 141.5000
Nearest CityNamie (44 km)
Urban exposure index (PEI)0 within 30 km
Impact Tierminor
Timestamp2026-09-14T11:00:00.000Z
Sourcehttps://www.jma.go.jp/bosai/quake/20260914200253_20260914200001_VXSE5k_1.json

Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.

Source and revision timeline

Source: jma. Occurrence: 2026-09-14T11:00:00.000Z.

First archived: 2026-09-14T13:24:35.805Z. Material modification: 2026-09-14T18:10:55.921Z.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

  1. 2026-09-14T18:10:55.921Z · data_change

    Index 3 → 3; severity low → low; version 5 → 5.

  2. 2026-09-14T18:05:39.544Z · data_change

    Index 3 → 3; severity low → low; version 5 → 5.

  3. 2026-09-14T15:42:15.930Z · data_change

    Index 3 → 3; severity low → low; version 5 → 5.

  4. 2026-09-14T15:36:57.747Z · data_change

    Index 3 → 3; severity low → low; version 5 → 5.

Score Breakdown

6
intensity
0
Urban PEI term
0
Scenario weight
3
Recorded reference / batch anomaly

Technical Details

Mag4.3
MaxIntensity2
AreaName福島県沖
ContentType20260914200253
Serial1
Usgs Mag4.6
Usgs Depth51.32
Usgs Tsunamifalse
Usgs Sig326
Emsc Mag4.6
Emsc Depth50
Emsc MagTypemb
Emsc RegionNEAR EAST COAST OF HONSHU, JAPAN
Emsc AuthEMSC
Emsc SourceId2060174
Gfz Mag4.72
Gfz Depth47
Gfz MagTypemb
Gfz RegionNear East Coast of Honshu, Japan
MergedSources[{"id":"usgs_us7000thct","source":"usgs","severity":"low","severityValue":27.599999999999998,"timestamp":1789383594677,"latitude":37.6068,"longitude":141.5344},{"id":"emsc_20260914_0000144","source":"emsc","severity":"low","severityValue":27.599999999999998,"timestamp":1789383594920,"latitude":37.6508,"longitude":141.5137},{"id":"gfz_gfz2026saoo","source":"gfz","severity":"low","severityValue":28.32,"timestamp":1789383594890,"latitude":37.694,"longitude":141.428}]

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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