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Costa Rica earthquakes in 1978

10 earthquakes of magnitude 4.5 or more were located in Costa Rica in 1978. The largest: M7.0 19 km N of Nandayure, Costa Rica, Aug 22, 1978.

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

19771979

Map

Where every quake of 1978 was located in Costa Rica. Select one for its page.

Open the live map with earthquakes

Every quake of 1978

Magnitude 4.5 and up, newest first.

Month by month

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

MonthQuakesLargestWhere
January 197815.09 km NNE of Quepos, Costa Rica
February 19780
March 197814.66 km WSW of Tejar, Costa Rica
April 19780
May 19780
June 19780
July 197815.038 km NW of Sardinal, Costa Rica
August 197857.019 km N of Nandayure, Costa Rica
September 197814.78 km W of Cañas, Costa Rica
October 19780
November 197814.52 km W of Hojancha, Costa Rica
December 19780

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

Costa Rica nowWorldwide in 1978

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.