The 7,025-foot Chaparrastique, which is also known as San Miguel, is located about 90 miles east of the capital, San Salvador.
The country’s civil protection department said the greatest risk posed by the mountain was from landslides of volcanic material dislodged from Chaparrastique’s slopes by heavy rain.
The volcano last erupted in late December 2013 with its most powerful blasts since 1976.
At that time, volcanic ash fell on nearby coffee plantations and forced aviation officials to suspend more than 36 international flights.
No such difficulties were reported from the latest rumblings.
Photo: Geovanni Lemus - Flickr