Calamity
LowEarthquakesCalamity Score: 7

Earthquakes 31 km NNW of Valparaíso, Chile

ChileCSN CHILE

Right now

The most recent data we hold from CSN CHILE arrived 8 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

Nothing else has been detected within 20 km in the last 24 hours.

Reported by CSN CHILE 103 days ago.

It is the 11th strongest of the 23 detections recorded within 20 km of this point since 31 May 2026. Another comparable one was recorded here earlier the same day. 12 more were recorded here in the fortnight before it.

What the source measured

CSN CHILE reported: 31 km NNW of Valparaíso, Chile

CSN CHILE recorded magnitude 4.8 at a depth of 28 km.

Nearby, since 31 May 2026

How we know

Confirmed by 2 independent sources, including CSN CHILE.

Our own score for this event is 7 out of 100, at 72 % confidence.

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

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeEarthquakes
SeverityLow
Calamity Score (ours)7 / 100
Our confidence72%
Coordinates-32.7963, -71.8152
Timestamp2026-05-31T21:52:11.763Z
Sourcehttps://earthquake.usgs.gov/earthquakes/eventpage/us7000spqh

Score Breakdown

16
intensity
0
population
0
cascading
8
historical

Technical Details

Mag4.8
Depth27.61
Place31 km NNW of Valparaíso, Chile
UsgsIdus7000spqh
FromUSGSFallbacktrue
Usgs Mag4.8
Usgs Depth27.61
Usgs Tsunamifalse
Usgs Felt7
Usgs Sig357
Emsc Mag4.8
Emsc Depth27.6
Emsc MagTypemw
Emsc RegionOFFSHORE VALPARAISO, CHILE
Emsc AuthNEIC
Emsc SourceId2003427
MergedSources[{"id":"usgs_us7000spqh","source":"usgs","severity":"low","severityValue":28.799999999999997,"timestamp":1780264331763,"latitude":-32.7963,"longitude":-71.8152},{"id":"emsc_20260531_0000349","source":"emsc","severity":"low","severityValue":28.799999999999997,"timestamp":1780264331763,"latitude":-32.7963,"longitude":-71.8152}]

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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