M 4.6 earthquake near Cagayan, 菲律宾 — 1977-03-21

Magnitude 4.6 earthquake near Tuguegarao东南119公里（菲律宾）, depth 33 km, 14:28 Local (1977-03-21 06:28 UTC). Shaking felt by ~435万 people. Readings from every reporting agency, affected towns, aftershock sequence.

Tuguegarao东南119公里（菲律宾） — 16.771, 122.418