A 5.9-magnitude earthquake struck southern Mexico early Monday, but it was shorter and less intense than one that struck in the same area, damaging about 1,000 houses, on Friday.
Monday's quake struck 27 miles east of Oaxaca at a depth of six miles, the U.S. Geological Survey said. Oaxaca is about 300 miles south of Mexico City. There are no immediate reports of casualties or damage.
The quake triggered emergency alarms and jarred awake residents as far away as Mexico City who scrambled into the streets.
Friday's tremors caused tall buildings in Mexico's capital to sway for over two minutes and revived memories of two earthquakes in September last year that killed several hundred people in Mexico City and other parts of the country.
Earthquake swarm in Iceland intensifies with M5.2 and M4.5 earthquakes and more than 2,000 earthquakes in 4 days
People are constantly being shaken awake on Grimsey Island, in North Iceland. A M5.2 earthquake hit around 5:30 this morning. One hour later a M4.5 quake hit the same region, which is under high seismic activity with more than 2,000 earthquakes detected since February 14th. Both tremblors as well as more than 6 aftershocks were felt by residents of the island. This is not the first swarm to occur in the area, though such an active one has not occurred since 1988, nearly 30 years ago.
Though the source of the earthquakes is a fault line and a volcanic area, official source states there is no indication the earthquakes are connected to volcanic activity.