Isabela, Cagayan Valley • 16.69°N, 121.55°E
Real-time earthquake tracking and seismic risk for Santiago, Isabela — recent activity, nearby fault lines and volcanoes, and emergency contacts.
Seismic risk
73/100
very high
Last 90 days
335
within 200 km
Last 24h
8
Largest
M3.8
Nearest fault
52 km
Casiguran Fault
Faults <150 km
3
Population
134,830
Seismic Risk Score: 73/100
52km from Casiguran Fault
PHILIPPINE ISLANDS REGION
1 months ago • 10km deep
Energy: ~8 tons of TNT
321
Shallow (<70km)
Most damaging
14
Intermediate
70-300km
0
Deep (>300km)
Less damage
Shallow earthquakes (<70km) typically cause the most damage as seismic waves travel a shorter distance to the surface. Santiago has experienced 321 shallow earthquakes in the past 90 days.
Largest recorded events within 250 km of Santiago (USGS catalog, since 1900).
4 km E of Macapsing, Philippines
1990 • 119 km away • 25 km deep
6 km E of Tignoan, Philippines
1937 • 236 km away • 15 km deep
28 km SE of Minuri, Philippines
1968 • 65 km away • 31 km deep
14 km ENE of Suklayin, Philippines
1970 • 101 km away • 31 km deep
14 km WNW of Bolitoc, Philippines
1999 • 219 km away • 33 km deep
7 km N of Agbannawag, Philippines
1949 • 83 km away • 15 km deep
41 km W of Pagsanahan Norte, Philippines
1938 • 214 km away • 15 km deep
17 km N of Karligan, Philippines
1970 • 181 km away • 15 km deep
11 km NE of Bantay, Philippines
2022 • 121 km away • 34 km deep • 🌊 tsunami
1 km ENE of Santo Cristo, Philippines
1985 • 180 km away • 188 km deep
34 km E of Dicamay, Philippines
1977 • 83 km away • 37 km deep
30 km ESE of Dicamay, Philippines
1972 • 74 km away • 31 km deep
Philippine Fault Zone
🔴 Active • 1200km long
Max historical: M7.8
Casiguran Fault
🔴 Active • 90km long
Max historical: M7.3
Digdig Fault
🔴 Active • 200km long
Max historical: M7.8
Santiago is located in the Cagayan Valley of the Philippines, a country that sits on the Pacific Ring of Fire—one of the most seismically active zones on Earth. The Philippines experiences an average of 20 earthquakes per day, though most are too small to be felt.
The nearest major fault to Santiago is the Casiguran Fault, located approximately 52 km away. The last major event on this fault was the 1968 Casiguran Earthquake (M7.3).
With a population of 134,830, earthquake preparedness is crucial for Santiago residents. We recommend having an emergency kit ready, knowing the safest spots in your home, and practicing DROP-COVER-HOLD ON with your family.
FAQ
Santiago, Isabela has a very high earthquake risk (73/100 on QuakeGlobe's index), driven mainly by its proximity to the Casiguran Fault (~52 km away). Our catalog logged 335 earthquakes within 200 km in the last 90 days, the strongest a M3.8.
The nearest mapped fault to Santiago is the Casiguran Fault, about 52 km away. It is considered capable of up to about M7.3. Its last major event was the 1968 Casiguran Earthquake (M7.3).
The strongest earthquake catalogued near Santiago since 1900 was a M7.7 in 1990 (4 km E of Macapsing, Philippines). Damaging earthquakes are infrequent, but the surrounding region is seismically active.
Drop, Cover, and Hold On: get under a sturdy table, protect your head and neck, and stay put until the shaking stops. Stay away from windows and exterior walls, and if you are near the coast and feel strong or prolonged shaking, move to higher ground in case of a tsunami. See the QuakeGlobe preparedness guide for a full checklist.