Calamity
MediumEarthquakesCS: 17 · v1

Earthquakes 35 km WNW of Pante Makasar, Timor Leste — Light shaking (MMI 4.4)

IndonesiaUSGS

Right now

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

Reported by USGS 153 days ago.

It is the strongest of the 5 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 16 March 2026.

What the source measured

USGS reported: 35 km WNW of Pante Makasar, Timor Leste — Light shaking (MMI 4.4)

USGS recorded magnitude 5.5 at a depth of 77 km.

Nearby, since 16 March 2026

How we know

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

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 index0.60/1
Coordinates-9.0680, 124.0863
Nearest CityKefamenanu (61 km)
Urban exposure index (PEI)0 within 20 km
Impact Tierminor
Timestamp2026-04-21T03:17:07.811Z
Sourcehttps://earthquake.usgs.gov/earthquakes/eventpage/us6000srrc/shakemap

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_shakemap. Occurrence: 2026-04-21T03:17:07.811Z.

First archived: 2026-04-21T14:39:07.415Z. 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

30
intensity
0
Urban PEI term
18
Scenario weight
15
Recorded reference / batch anomaly

Technical Details

Mag5.5
Depth77.17
Mmi4.43
MmiDescriptionLight
Felt2
Alertgreen
Sig466
Tsunamifalse
Place35 km WNW of Pante Makasar, Timor Leste
Types,dyfi,losspager,origin,phase-data,shakemap,

Cascade Risks

landslide

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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