El Salvador earthquakes in 1977
10 earthquakes of magnitude 4.5 or more were located in El Salvador in 1977. The largest: M5.2 7 km S of Chirilagua, El Salvador, Apr 11, 1977.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1977 was located in El Salvador. Select one for its page.
Every quake of 1977
Magnitude 4.5 and up, newest first.
- 5.156 km S of El Rosario, El Salvador · 84 km deep
- 5.014 km WSW of Acajutla, El Salvador · 108 km deep
- 4.87 km SW of San Francisco Menéndez, El Salvador · 84 km deep
- 4.841 km SW of Puerto El Triunfo, El Salvador · 81 km deep
- 4.772 km S of El Rosario, El Salvador · 33 km deep
- 4.82 km E of Chapeltique, El Salvador · 208 km deep
- 5.27 km S of Chirilagua, El Salvador · 10 km deep
- 5.034 km S of Puerto El Triunfo, El Salvador · 76 km deep
- 4.731 km SSE of Acajutla, El Salvador · 95 km deep
- 4.550 km SSW of El Rosario, El Salvador · 85 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1977 | 1 | 4.5 | 50 km SSW of El Rosario, El Salvador |
| February 1977 | 0 | ||
| March 1977 | 2 | 5.0 | 34 km S of Puerto El Triunfo, El Salvador |
| April 1977 | 2 | 5.2 | 7 km S of Chirilagua, El Salvador |
| May 1977 | 1 | 4.7 | 72 km S of El Rosario, El Salvador |
| June 1977 | 0 | ||
| July 1977 | 1 | 4.8 | 41 km SW of Puerto El Triunfo, El Salvador |
| August 1977 | 1 | 4.8 | 7 km SW of San Francisco Menéndez, El Salvador |
| September 1977 | 1 | 5.0 | 14 km WSW of Acajutla, El Salvador |
| October 1977 | 1 | 5.1 | 56 km S of El Rosario, El Salvador |
| November 1977 | 0 | ||
| December 1977 | 0 |
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.
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Nearby
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.