Every countryEcuador

Ecuador earthquakes in 1977

27 earthquakes of magnitude 4.5 or more were located in Ecuador in 1977. The largest: M5.7 off the coast of Ecuador, May 14, 1977.

From the USGS catalog. Times are local to each quake.

19761978

Map

Where every quake of 1977 was located in Ecuador. Select one for its page.

Open the live map with earthquakes

Every quake of 1977

Magnitude 4.5 and up, newest first.

The largest

The 25 largest of 1977 in Ecuador.

Month by month

Counted by UTC date, which is how the catalog files them.

MonthQuakesLargestWhere
January 197725.0off the coast of Ecuador
February 197725.1206 km N of Puerto Ayora, Ecuador
March 197744.8290 km N of Puerto Ayora, Ecuador
April 19770
May 1977135.7off the coast of Ecuador
June 197715.093 km E of Palora, Ecuador
July 197724.834 km WNW of Alausí, Ecuador
August 19770
September 197714.9124 km NW of Puerto Villamil, Ecuador
October 19770
November 197724.726 km ESE of Palora, Ecuador
December 19770

What this means

The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.

By year

Every year the USGS catalog covers.

Nearby

Ecuador nowWorldwide in 1977

Sources

Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.