Significant earthquakes of 1970

April 7, 1970 Earthquake: Luzon, Philippines

April 7, 1970 · M7.3 · 15 deaths

A magnitude 7.3 earthquake struck Luzon, Philippines on April 7, 1970 at 05:34:05 UTC, 40 km below the surface. It killed 15 people.

Map

Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.

The earthquake

Date
April 7, 1970
Time
05:34:05 UTC
Place
Luzon, Philippines
Magnitude
7.3 (Ms)
Focal depth
40 km (25 mi)
Intensity
6 on the Modified Mercalli scale
Epicenter
15.780° N, 121.710° E

The toll

Deaths
15
Injuries
200
Damage
Moderate (about $1 to $5 million)

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

What the record says

NCEI’s account, from the sources it cites.

On April 7, 1970 at 05:34:05.6 UTC (15.8N, 121.7E, depth 37 km, magnitude 7.3 MS), an earthquake on Luzon, Philippine Islands, caused 15 deaths, more than 200 injured; major damage in the Manila area. Felt throughout Luzon island. (reference #45)

Total casualties were 14 killed and some hundreds injured. The deaths all resulted from the main shock on April 7, 1970, 05:34:06.2 UTC, 15.78 N, 121.71 E, magnitude 6.5 mb, depth 40 km. Some dozens of injuries occurred during the most severe aftershock at 12:02 p.m. [local time] on April 12, and a few injuries occurred during other aftershocks. The earthquake generated a tsunami. (reference #1187)

The earthquake was felt at an intensity of VII points (on the Rossi-Forel scale) in the region of Greater Manila: in Tugegarao, Baler, Dagupan, Baguio, Cabanatun, Infanta, and Gulod. Fourteen people died and over 200 were injured. There was great destruction in the Manila region. (reference #417)

Seven people were killed and more than 175 persons were injured as a result of the earthquake that did major damage in the Manila area and was felt throughout Luzon. (reference #3149)

14 killed (reference #4164)

Two years later on April 7, 1970 and about 72 km from the 1968 epicenter, a Ms 7.0 earthquake again occurred at 1:34 PM. This quake caused heavy damage to buildings in the town of Baler in Aurora province. Fissures opened and widespread landslides occurred along the epicentral area. Like the 1968 event, this also caused severe damage to buildings in Metro Manila. (reference #10958)

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 1970The 1900sEvery quake the USGS located in 1970Recent earthquakes near hereThis day in weather history

Sources

Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 4526.