Calamity
MediumEarthquakesCS: 17 · v1

Earthquakes near Tambolaka

Sumba Barat DayaIndonesiaUSGS

Right now

The most recent data we hold from USGS arrived 4 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 USGS 63 days ago.

No stronger detection stands among the 8 recorded within 20 km of this point since 17 June 2026 — one other scored the same. The last comparable one was on 3 July 2026. One more was recorded here in the fortnight before it.

What the source measured

USGS reported: 27 km SSE of Tambolaka, Indonesia

USGS recorded magnitude 5.1 at a depth of 43 km.

Nearby, since 17 June 2026

How we know

2 recorded sources include USGS; independence is not established by this count.

Our own score for this event is 17 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 v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeEarthquakes
SeverityMedium
Calamity Score (ours)17 / 100
Legacy data-support index0.65/1
Coordinates-9.6705, 119.3040
Nearest CityTambolaka (28 km)
Urban exposure index (PEI)0 within 20 km
Impact Tierminor
Timestamp2026-07-12T13:20:25.867Z
Sourcehttps://earthquake.usgs.gov/earthquakes/eventpage/us7000szvq

Physical priority index · v1. 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: usgs. Occurrence: 2026-07-12T13:20:25.867Z.

First archived: 2026-07-13T01:19:42.027Z. Material modification: not recorded.

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

Score Breakdown

22
intensity
0
Urban PEI term
0
Scenario weight
80
Recorded reference / batch anomaly

Technical Details

Mag5.1
Depth42.94
Tsunamifalse
Felt1
Sig401
Emsc Mag5.1
Emsc Depth10
Emsc MagTypemb
Emsc RegionSUMBA REGION, INDONESIA
Emsc AuthEMSC
Emsc SourceId2024955
MergedSources[{"id":"emsc_20260712_0000172","source":"emsc","severity":"medium","severityValue":40.8,"timestamp":1783862421890,"latitude":-9.687,"longitude":119.3095}]

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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