| Magnitude | 5.0 |
| Alert | Strong |
| Depth | 72.0 km |
| Coordinates | 20.037, 121.395 |
| UTC time | 1973-07-21 11:46:34.900 |
Earthquake details
Saturday, July 21, 1973 Earthquake
The earthquake hit Philippines on Saturday, July 21, 1973 at 11:46 UTC with a magnitude of 5.0. The closest known location in the current dataset is Aparri (Philippines - PH), about 188.8 km away. The epicenter is located at longitude 121.395 and latitude 20.037.
| Location | Aparri |
| Country | Philippines (PH) |
| Severity | Strong |
Earthquake map 1973-07-21
Closest countries
The 12 closest cities near the epicenter.
| Aparri | 188.8 km |
| Laoag | 221.3 km |
| San Nicolas | 224.0 km |
| Hengchun | 229.2 km |
| Batac City | 237.3 km |
| Solana | 267.2 km |
| Tuguegarao City | 271.7 km |
| Donggang | 287.6 km |
| Chaozhou | 293.4 km |
| Vigan | 294.0 km |
| Taito | 304.2 km |
| Kaohsiung City | 308.2 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
|
M 4.5
Laoag
Philippines · 2025-12-05 19:37 UTC
|
231.2 km |
|
M 4.9
Laoag
Philippines · 2025-11-27 03:10 UTC
|
192.9 km |
|
M 4.6
Laoag
Philippines · 2025-11-22 17:18 UTC
|
245.3 km |
|
M 4.2
Aparri
Philippines · 2025-11-02 08:32 UTC
|
109.1 km |
|
M 4.6
Aparri
Philippines · 2025-09-22 20:33 UTC
|
112.9 km |
|
M 4.7
Aparri
Philippines · 2025-08-11 02:55 UTC
|
206.7 km |
|
M 4.5
Laoag
Philippines · 2025-07-16 01:03 UTC
|
191.5 km |
|
M 4.4
Laoag
Philippines · 2025-07-11 12:52 UTC
|
205.4 km |
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