M5.4 earthquake 20 km SE of Union, Philippines
A magnitude 5.4 earthquake struck 20 km SE of Union, Philippines on Sat, Dec 28, 2024, 2:42 AM GMT+8 (18:42 UTC), 63 km (39 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mww), moderate
- Local time
- UTC
- 2024-12-27 18:42:59 UTC
- Depth
- 63.0 km (39.1 mi), shallow
- Epicenter
- 9.615° N, 126.229° E
- Region
- Philippines
- Felt reports
- 19
- Strongest shaking
- IV, light shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Peak ground acceleration
- 5.5% of gravity
- Peak ground velocity
- 3.3 cm/s
- Map
- Automatic
Did you feel it?
19 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
| Range | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
| Range, million USD | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Normal
- Moment magnitude
- 5.4 Mww
- Nodal plane 1
- Strike 184°, dip 86°, rake -114°
- Nodal plane 2
- Strike 86°, dip 24°, rake -9°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 8.4 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From modeling of broad-band P waveforms
- Station coverage gap
- 23°
- Stations used
- 220
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 5 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.63 km N of Dapa, Philippines · 632 days ago · 10 km deep · 28 km away · felt by 1
- 4.116 km NW of Del Carmen, Surigao del Norte, Philippines · 623 days ago · 121 km deep · 56 km away
- 4.618 km SSE of Union, Philippines · 616 days ago · 82 km deep · 5 km away · felt by 4
- 4.27 km WNW of Del Carmen, Surigao del Norte, Philippines · 606 days ago · 105 km deep · 47 km away
- 4.25 km WNW of Pilar, Philippines · 588 days ago · 10 km deep · 36 km away
Before
Earthquakes todayPhilippines earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000pfz1 (also filed as usauto6000pfz1). Read Wed, Sep 30, 2026, 9:28 PM UTC.