5.5

M5.5 Earthquake 64 km SE of Pondaguitan, PhilippinesFebruary 20, 2022

2022-02-20 18:29:27 UTC (2022-02-20) · approx. 2:29 AM UTC+8 local

Felt by 8 people across nearby locations. Maximum shaking intensity MMI 4.1 (moderate).

MagnitudeM5.5(mww)
Time18:29 UTC2:29 AM UTC+8
Depth58.1 kmshallow crustal
Coordinates6.007°, 126.645°
Felt by8DYFI responses· max MMI 4.1
Status✓ Reviewed by USGS· green PAGER
green Alertno significant casualties or damage expected

On February 20, 2022 at 18:29 UTC, a magnitude 5.5 shallow crustal earthquake struck 64 km SE of Pondaguitan, Philippines, at a depth of 58.1 km and coordinates 6.0071°, 126.6453°. The earthquake was reported felt by 8 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 4.1 (moderate). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. The nearest populated place is Pondaguitan (population 2,143).

Physical scale: An earthquake of magnitude 5.5 releases seismic energy equivalent to roughly 3 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 3.8 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Philippines, a region characterized by the Manila Trench and Philippine Trench subduction systems, where the Philippine Sea Plate overrides the Eurasian Plate. The nearest mapped fault system is the Philippine Fault. View all earthquakes in Philippines.

Learn more: Magnitude scale · Aftershock sequences

Nearest Populated Places

Pondaguitanpop. 2,143
MMI 4.0 (light)
Suruppop. 2,119
MMI 4.0 (light)
Tiblawanpop. 2,843
MMI 3.9 (light)
Luzonpop. 3,211
MMI 3.9 (light)
Nanganpop. 3,362
MMI 3.9 (light)
Magdugpop. 2,343
MMI 3.9 (light)
Map showing earthquake epicenter at 6.01°, 126.65°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M5.5 earthquake near 64 km SE of Pondaguitan, Philippines

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 8 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M5.5 earthquake near 64 km SE of Pondaguitan, Philippines

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Population exposure (USGS PAGER)

Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.

Shaking intensity (MMI)DescriptionPopulation exposed
MMI 3weak7,552,194
MMI 4light925,999

Earthquake Details

Magnitude
5.5 mww
Depth
58.1 km
shallow crustal
Location
6.0071°N
126.6453°E
Felt Reports
8
DYFI responses
Intensity (MMI)
4.1
moderate
Community Intensity
4.1
CDI from reports

Technical Information

Event ID
us7000gmgl
Event Type
earthquake
Status
✓ Reviewed
Significance
469
Azimuthal Gap
40.0°
Min Station Distance
1.495°
RMS Residual
1.05 sec
Last Updated
2022-05-04 13:38:59 UTC

Common Questions

How strong was the magnitude 5.5 earthquake near Pondaguitan, Philippines?

The magnitude 5.5 earthquake that struck 64 km SE of Pondaguitan, Philippines on February 20, 2022 at 18:29 UTC had a depth of 58.1 km. It was felt by 8 people with maximum shaking intensity of MMI 4.1 (moderate). For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 6.0071°, 126.6453°, which is 64 km SE of Pondaguitan, Philippines. The nearest populated place is Pondaguitan (population 2,143). View all earthquakes in Philippines.

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.

Has Philippines had earthquakes this big before?

The largest recorded earthquake in Philippines was the M8.0 Mindanao earthquake of August 17, 1976. Today's magnitude 5.5 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000gmgl). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, February 20, 2022). M5.5 Earthquake 64 km SE of Pondaguitan, PhilippinesFebruary 20, 2022. Retrieved May 4, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gmgl/