M4.5 Earthquake 237 km NNE of Lospalos, Timor Leste — June 2, 2023
2023-06-02 21:57:15 UTC (2023-06-02) · approx. 6:57 AM UTC+9 local
Aftershock of the M5.0 mainshock.
On June 2, 2023 at 21:57 UTC, a magnitude 4.5 deep-focus earthquake struck 237 km NNE of Lospalos, Timor Leste, at a depth of 360.8 km and coordinates -6.5170°, 127.7706°. This earthquake was detected by 63 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 5 days ago 209 km NNE of Lospalos, Timor Leste. Since the mainshock, the USGS has recorded 4 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
127.7706°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Lospalos, Timor Leste?
The magnitude 4.5 earthquake that struck 237 km NNE of Lospalos, Timor Leste on June 2, 2023 at 21:57 UTC had a depth of 360.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -6.5170°, 127.7706°, which is 237 km NNE of Lospalos, Timor Leste.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.0 one earlier?
No. This magnitude 4.5 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 209 km NNE of Lospalos, Timor Leste. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Actions
Authoritative source: USGS event page (event ID: us7000k5xa). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 2, 2023). M4.5 Earthquake 237 km NNE of Lospalos, Timor Leste — June 2, 2023. Retrieved August 5, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000k5xa/