| Magnitude | 5.2 |
| Alert | Strong |
| Depth | 20.0 km |
| Coordinates | 18.834, 120.650 |
| UTC time | 1973-09-21 13:48:32.200 |
Earthquake details
Friday, September 21, 1973 Earthquake
The earthquake hit Philippines on Friday, September 21, 1973 at 13:48 UTC with a magnitude of 5.2. The closest known location in the current dataset is Laoag (Philippines - PH), about 71.1 km away. The epicenter is located at longitude 120.650 and latitude 18.834.
| Location | Laoag |
| Country | Philippines (PH) |
| Severity | Strong |
Earthquake map 1973-09-21
Closest countries
The 12 closest cities near the epicenter.
| Laoag | 71.1 km |
| San Nicolas | 73.9 km |
| Batac City | 87.1 km |
| Aparri | 117.3 km |
| Vigan | 142.9 km |
| Solana | 171.5 km |
| Tuguegarao City | 176.8 km |
| Tagudin | 212.5 km |
| Ilagan | 228.9 km |
| Ramon | 246.7 km |
| San Fernando | 249.4 km |
| Santiago | 257.2 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.8
Aparri
Philippines · 2026-08-19 04:22 UTC
79.2 km
M 4.6
Tuguegarao City
Philippines · 2026-07-17 09:40 UTC
63.4 km
M 4.3
Tuguegarao City
Philippines · 2026-05-23 06:25 UTC
48.8 km
M 5.1
Tuguegarao City
Philippines · 2026-02-22 10:40 UTC
77.9 km
M 4.5
Laoag
Philippines · 2026-01-27 16:56 UTC
15.3 km
M 4.4
Laoag
Philippines · 2025-12-19 05:33 UTC
21.2 km
M 4.5
Laoag
Philippines · 2025-12-05 19:37 UTC
91.4 km
M 4.9
Laoag
Philippines · 2025-11-27 03:10 UTC
58.1 km
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