| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | 19.925, 120.447 |
| UTC time | 1978-08-04 08:55:00.900 |
Earthquake details
Friday, August 4, 1978 Earthquake
The earthquake hit Philippines on Friday, August 4, 1978 at 08:55 UTC with a magnitude of 5.4. The closest known location in the current dataset is Laoag (Philippines - PH), about 192.9 km away. The epicenter is located at longitude 120.447 and latitude 19.925.
| Location | Laoag |
| Country | Philippines (PH) |
| Severity | Strong |
Earthquake map 1978-08-04
Closest countries
The 12 closest cities near the epicenter.
| Laoag | 192.9 km |
| San Nicolas | 195.7 km |
| Batac City | 208.5 km |
| Aparri | 215.0 km |
| Hengchun | 233.5 km |
| Vigan | 261.7 km |
| Donggang | 282.8 km |
| Solana | 284.9 km |
| Tuguegarao City | 290.1 km |
| Chaozhou | 292.4 km |
| Kaohsiung City | 299.9 km |
| Taito | 323.8 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.6
Tuguegarao City
Philippines · 2026-07-17 09:40 UTC
96.7 km
M 4.7
Laoag
Philippines · 2026-07-15 21:33 UTC
97.7 km
M 5.3
Hengchun
Taiwan · 2026-02-11 22:27 UTC
65.1 km
M 4.5
Aparri
Philippines · 2025-12-18 07:33 UTC
92.7 km
M 5.5
Aparri
Philippines · 2025-12-18 07:27 UTC
85.7 km
M 4.0
Laoag
Philippines · 2025-12-11 06:42 UTC
99.6 km
M 4.6
Laoag
Philippines · 2025-10-08 23:54 UTC
86.5 km
M 4.7
Aparri
Philippines · 2025-10-02 08:06 UTC
91.4 km
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