Calamity
LowEarthquakesCS: 8 · v5

Earthquakes near Matías Romero Avendaño

MexicoEMSC

Right now

The most recent data we hold from EMSC arrived 45 minutes ago, and this point is in it.

One other detection within 20 km in the last 24 hours, 11 km from here.

Reported by EMSC today.

It is the 2nd strongest of the 12 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 13 September 2026. One more was recorded here in the fortnight before it.

What the source measured

EMSC reported: OAXACA, MEXICO

EMSC recorded magnitude 4.0 at a depth of 97 km.

The seismic region given by the source is OAXACA, MEXICO.

Urban PEI: 9,942 within a heuristic 30 km radius; not unique people.

Nearby, since 15 March 2026

How we know

One source: EMSC. Not yet confirmed by a second, independent source.

Our own score for this event is 8 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)8 / 100
Legacy data-support index0.82/1
Coordinates16.7670, -94.9480
Nearest CityMatías Romero Avendaño (16 km)
Urban exposure index (PEI)9.9K within 30 km
Impact Tierminor
Timestamp2026-09-14T14:11:57.000Z
Sourcehttps://www.seismicportal.eu/eventdetail.html?unid=20260914_0000196

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: emsc. Occurrence: 2026-09-14T14:11:57.000Z.

First archived: 2026-09-14T14:41:10.941Z. Material modification: not recorded.

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

  1. 2026-09-14T17:13:10.467Z · data_change

    Index 88; severity lowlow; version 55.

  2. 2026-09-14T16:30:02.084Z · data_change

    Index 88; severity lowlow; version 55.

Score Breakdown

0
intensity
25
Urban PEI term
0
Scenario weight
0
Recorded reference / batch anomaly

Technical Details

Mag4
Depth96.7
MagTypem
RegionOAXACA, MEXICO
AuthUNM
SourceId2060247

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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