M4.9 Earthquake 123 km NNE of Lospalos, Timor Leste — December 29, 2021
2021-12-29 19:21:12 UTC (2021-12-29) · approx. 4:21 AM UTC+9 local
Felt by 1 person across nearby locations.
On December 29, 2021 at 19:21 UTC, a magnitude 4.9 intermediate depth earthquake struck 123 km NNE of Lospalos, Timor Leste, at a depth of 163.9 km and coordinates -7.5864°, 127.6170°.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
127.6170°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Lospalos, Timor Leste?
The magnitude 4.9 earthquake that struck 123 km NNE of Lospalos, Timor Leste on December 29, 2021 at 19:21 UTC had a depth of 163.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -7.5864°, 127.6170°, which is 123 km NNE of Lospalos, Timor Leste.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000g7rd). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, December 29, 2021). M4.9 Earthquake 123 km NNE of Lospalos, Timor Leste — December 29, 2021. Retrieved March 5, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000g7rd/