Significant earthquakes of 1970

December 10, 1970 Earthquake: S, N, Ecuador, Peru

December 10, 1970 · M7.6 · 82 deaths · $6 million

A magnitude 7.6 earthquake struck S, N, Ecuador, Peru on December 10, 1970 at 04:34:38 UTC, 25 km below the surface. It killed 82 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
December 10, 1970
Time
04:34:38 UTC
Place
S, N, Ecuador, Peru
Magnitude
7.6 (Ms)
Focal depth
25 km (16 mi)
Intensity
10 on the Modified Mercalli scale
Tsunami
None recorded
Epicenter
4.000° S, 80.700° W
Country
Peru

The toll

Deaths
82
Injuries
350
Damage
$6 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.

December 10, 1970, 04:34:38.8 UTC, 4 S, 80.7 W, magnitude 7.6 MS, depth 25 km. 81 killed, many injured, and property damage in southern Ecuador and northern Peru. (reference #45)

December 10, 1970, 04:34 UTC, 4 S, 80.7 W, magnitude 6.3 mb, 7.3 MS, depth 25 km. A destructive earthquake on the Ecuador-Peru border, south of the Gulf of Guayaquil; widespread damage in southern Ecuador. In Ecuador, the town of Alamor in Loja province is said to have been 90 per cent destroyed and there was severe damage throughout this province (at Macara, Cariamanga, etc.); 50 persons were killed; at Guayaquil, many persons suffered from nervous shock; the earthquake was felt with intensity III at

Quito, 450 km from the epicentre. In Peru, 32 persons were killed and 350 injured; casualties and damage were particularly heavy at Tumbes, Talara, Sullana, Querecotillo and Piura. The main shock was followed throughout the month of December by aftershocks of which the strongest reached magnitude 6 and of which at least 10 were of magnitude (m) > 5. (reference #1039)

December 10, 1970, 04:34:38.8 UTC, 3.97 S, 80.66 W, depth 16 km, magnitude 6.3 mb, 7.6 MS, intensity X. (reference #1208)

$4 million damage in Ecuador, $2 million damage in Peru. (reference #1250)

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 4551.