M4.5 earthquake 9 km NNE of Gadung, Philippines
A magnitude 4.5 earthquake struck 9 km NNE of Gadung, Philippines on Tue, May 9, 1978, 8:12 AM GMT+8 (00:12 UTC), 563 km (350 mi) below the surface.
A larger quake followed: M5.3 55 km WSW of Sangay, Philippines. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1978-05-09 00:12:35 UTC
- Depth
- 563.0 km (349.8 mi), deep
- Epicenter
- 6.884° N, 124.049° E
- Region
- Philippines
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 4 in the 30 days before it.
After
Before
- 5.023 km WSW of Sangay, Philippines · 17682 days ago · 43 km deep · 65 km away
- 4.533 km W of Sangay, Philippines · 17682 days ago · 33 km deep · 63 km away
- 5.47 km WSW of Sangay, Philippines · 17682 days ago · 33 km deep · 53 km away
- 4.227 km SE of Malim, Philippines · 17689 days ago · 46 km deep · 65 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000uf3. Read Tue, Sep 22, 2026, 7:26 AM UTC.