Earthquake details

Sunday, March 20, 1977 Earthquake

The earthquake hit Philippines on Sunday, March 20, 1977 at 11:01 UTC with a magnitude of 5.0. The closest known location in the current dataset is Aglipay (Philippines - PH), about 102.9 km away. The epicenter is located at longitude 122.609 and latitude 16.508.

Magnitude	5.0
Alert	Strong
Depth	27.0 km
Coordinates	16.508, 122.609
UTC time	1977-03-20 11:01:56.100

Location	Tuguegarao City
Country	Philippines (PH)
Severity	Strong

Earthquake map 1977-03-20

Closest countries

The 12 closest cities near the epicenter.

Aglipay	102.9 km
Ilagan	104.7 km
Santiago	114.9 km
Ramon	118.6 km
Solano	152.4 km
Tuguegarao City	155.2 km
Bayombong	155.8 km
Solana	160.6 km
Dupax Del Norte	162.0 km
Bongabon	184.5 km
Muñoz	202.6 km
Talavera	207.8 km

Nearby earthquakes

The latest 8 earthquakes within 100 km of this epicenter.

M 4.6 Laoag Philippines · 2025-11-22 17:18 UTC	237.8 km
M 4.7 Tuguegarao City Philippines · 2025-10-10 16:54 UTC	113.1 km
M 4.7 Aparri Philippines · 2025-08-11 02:55 UTC	221.6 km

Stay informed

Earthquake alerts

Create targeted notifications for important seismic activity near the places you follow.

Choose the places you want to monitor.

Set a minimum magnitude for notifications.

Set up alerts Create account