M4.2 Earthquake 66 km SSW of Katubao, Philippines — July 1, 2026
2026-07-01 18:10:26 UTC (2026-07-01) · approx. 2:10 AM UTC+8 local
On July 1, 2026 at 18:10 UTC, a magnitude 4.2 shallow crustal earthquake struck 66 km SSW of Katubao, Philippines, at a depth of 11.0 km and coordinates 5.3056°, 124.6689°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 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 19 days ago 40 km SW of Balangonan, Philippines. Since the mainshock, the USGS has recorded 3 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
124.6689°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Katubao, Philippines?
The magnitude 4.2 earthquake that struck 66 km SSW of Katubao, Philippines on July 1, 2026 at 18:10 UTC had a depth of 11.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 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 4.2 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 40 km SW of Balangonan, Philippines. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000taxt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 1, 2026). M4.2 Earthquake 66 km SSW of Katubao, Philippines — July 1, 2026. Retrieved July 23, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000taxt/