Mexico's National Center for Disaster Prevention on Wednesday said an eruption at the Popocatepetl volcano caused a 3-magnitude earthquake.

The temblor occurred at 1:11 p.m. Tuesday.

The epicentre was in the southeast section of the volcano.
"These earthquakes are part of a swarm or train of volcano tectonic earthquakes that began last Monday," the disaster prevention centre, or CENAPRED, said in Wednesday's statement.
"At the time of this report there have been counted 366 of these earthquakes."

Popocatepetl is about 43 miles southeast of Mexico City.
On the same day, Mexico's Colima or "Fire" Volcano erupted a large column of gas and ash 2.5km into the sky
According to officials, the latest eruption took place on Monday at 12.19pm Mexican time.

The Fire Volcano, officially known as the Colima Volcano, is part of the Pacific Ring of Fire.

This week has been a very worrying week for seismologists after two potentially deadly volcanoes have shown signs of activity in Iceland.

The Bárðarbunga volcano suffered an earthquake of the magnitude 3.8, whihc was measured 5.7 kilometres North East of Bárðarbunga at 1.30 pm on Tuesday.

Martin Hensch at the Iceland Meterological Office said that around fifteen smaller quakes followed. No signs of volcanic activity or magma movements was detected.

Scientists are still looking at data from the Katla volcano which had two mag 4.+ quakes also on Tuesday and has seismologists worried.

“It is not a question of whether Katla will erupt, but when,” warns Kristín Jónsdóttir, Earthquake Hazards Coordinator at the Icelandic Met Office.

“We mustn’t forget that Katla is a very active volcano.
Looking back, there have been sixteen known eruptions since Iceland was settled,” she said, speaking on Icelandic radio today.