The volcano, near Mexico City, has been spewing glowing rock fragments and ash from more than 60 openings in its crust.
Officials say the alert could remain for weeks or months until the volcano's activity diminished.
for BBC News article and VIDEO LINK
Article continues below this advert:
Latest Earthquake News:
Earthquake causes panic in Indonesia
Quake measuring 6.6 strikes 50 miles off Indonesian coast, causing residents to flee their homes in Papua province
A powerful earthquake hit has waters off eastern Indonesia, sending panicked residents running from their homes, offices and schools.
Authorities said the quake did not have the potential to trigger a tsunami. The US Geological Survey said it had a preliminary magnitude of 6.6 and hit 50 miles (83km) off Papua province. It was centred just 18 miles beneath the ocean floor. There was some damage, but no immediate reports of injuries...Click above Guardian.co.uk link for FULL report
Also read the following for ClimateRealists.com links for current Solar Cliamte Change articles for period 22nd-24th April
Solar Climate Change: Yet another active Volcano found from this week s "Solar Kick"
Solar Climate Change: April Earthquakes/Volcano's could be just the start of what is to come for the next few months
The authorities in Mexico are stepping up preparations for an evacuation around the Popocatepetl volcano, in case of a major eruption.