Region I
Earthquake activity and monitoring across all cities in this region.
Cities
9
Major cities
1
HUC
Recent quakes
175
last 30 days
Max magnitude
M4.8
Population
1.0M
800 magnitude-4+ earthquakes catalogued in and around Ilocos Region since the instrumental era (USGS + PHIVOLCS).
1999 · 33 km deep
1938 · 15 km deep
2022 · 34 km deep · 🌊 tsunami
1987 · 107 km deep
1919 · 35 km deep
1931 · 15 km deep
1957 · 45 km deep
1990 · 23 km deep
1983 · 29 km deep
1929 · 25 km deep