5.5

M5.5 Earthquake 35 km WNW of Pante Makasar, Timor LesteApril 21, 2026

2026-04-21 03:17:07 UTC (2 days ago)

Felt by 2 people across nearby locations. Maximum shaking intensity MMI 4.4 (moderate).

green Alertno significant casualties or damage expected

On April 21, 2026 at 03:17 UTC, a magnitude 5.5 intermediate depth earthquake struck 35 km WNW of Pante Makasar, Timor Leste, at a depth of 77.2 km and coordinates -9.0680°, 124.0863°. The earthquake was reported felt by 2 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 4.4 (moderate). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 43 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 466, placing it among routine seismic activity. The nearest populated place is Kefamenanu (population 48,202).

Nearest Populated Places

Kefamenanupop. 48,202
MMI 3.9 (light)
Atambuapop. 82,196
MMI 3.8 (light)
Fatukotopop. 2,030
MMI 3.6 (light)
Pulawalapop. 1,171
MMI 3.5 (light)
Leramatangpop. 40,200
MMI 3.5 (light)
Betunpop. 39,650
MMI 3.4 (light)
Map showing earthquake epicenter at -9.07°, 124.09°

Earthquake Details

Magnitude
5.5 mww
Depth
77.2 km
intermediate depth
Location
-9.0680°N
124.0863°E
Felt Reports
2
DYFI responses
Intensity (MMI)
4.4
moderate
Community Intensity
2.7
CDI from reports

Technical Information

Event ID
us6000srrc
Event Type
earthquake
Status
✓ Reviewed
Significance
466
Stations Used
43
Azimuthal Gap
61.0°
Min Station Distance
0.706°
RMS Residual
1.31 sec
Last Updated
2026-04-22 18:10:44 UTC

Common Questions

How strong was the magnitude 5.5 earthquake near Pante Makasar, Timor Leste?

The magnitude 5.5 earthquake that struck 35 km WNW of Pante Makasar, Timor Leste on April 21, 2026 at 03:17 UTC had a depth of 77.2 km. It was felt by 2 people with maximum shaking intensity of MMI 4.4 (moderate). For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -9.0680°, 124.0863°, which is 35 km WNW of Pante Makasar, Timor Leste. The nearest populated place is Kefamenanu (population 48,202).

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.5 earthquakes can continue for days to weeks and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.