4.2

M4.2 Earthquake 5 km E of Mangili, PhilippinesJune 21, 2022

2022-06-21 21:27:36 UTC (2022-06-21) · approx. 5:27 AM UTC+8 local

MagnitudeM4.2(mb)
Time21:27 UTC5:27 AM UTC+8
Depth130.1 kmintermediate depth
Coordinates6.010°, 125.736°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 21, 2022 at 21:27 UTC, a magnitude 4.2 intermediate depth earthquake struck 5 km E of Mangili, Philippines, at a depth of 130.1 km and coordinates 6.0099°, 125.7361°.

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 5.1 mainshock that occurred 28 days ago 19 km ENE of Lapuan, Philippines. Since the mainshock, the USGS has recorded 1 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 6.01°, 125.74°

Earthquake Details

Magnitude
4.2 mb
Depth
130.1 km
intermediate depth
Location
6.0099°N
125.7361°E

Technical Information

Event ID
us7000hjzb
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
17
Azimuthal Gap
112.0°
Min Station Distance
1.064°
RMS Residual
0.60 sec
Last Updated
2022-08-28 03:19:52 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Mangili, Philippines?

The magnitude 4.2 earthquake that struck 5 km E of Mangili, Philippines on June 21, 2022 at 21:27 UTC had a depth of 130.1 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 M5.1 one earlier?

No. This magnitude 4.2 earthquake is an aftershock of the larger magnitude 5.1 mainshock that occurred earlier 19 km ENE of Lapuan, Philippines. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000hjzb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, June 21, 2022). M4.2 Earthquake 5 km E of Mangili, PhilippinesJune 21, 2022. Retrieved August 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hjzb/