Editor's note: A 7.4-magnitude earthquake hit Wednesday off the coast of Guatemala, according to the U.S. Geological Survey. Guatemalan officials say at least 48 people died and about 125,000 people were without power. The quake, centered about 15 miles from the coastal city of Champerico at a depth of 26 miles, was felt throughout Central America and as far north as Mexico City. Below are updates:

[Updated at 9:27 p.m. ET] At least 48 people were killed as a result of the earthquake, Guatemalan President Otto Perez Molina said.

[Updated at 5:07 p.m. ET] The death toll in the Guatemalan quake has risen to at least 29, said David de Leon, a spokesman for the country's disaster relief agency.

[Updated at 3:36 p.m. ET] This is the strongest earthquake in Guatemala since 1976, but the damages don’t appear to be as bad as those sustained back then, Guatemalan President Otto Perez Molina said.

Perez Molina said five aftershocks have happened since the first quake, which happened at about 10:35 a.m. local time (11:35 a.m. ET).

[Updated at 3:32 p.m. ET] Another quake - this time with a magnitude of 5 - happened at about 1:55 p.m. local time (2:55 p.m. ET), more than three hours after and 17 kilometers south-southwest from the first one, according to the U.S. Geological Survey.

The first quake had a depth of 25.8 miles. The second had a depth of 21.8 miles, according to the USGS.

[Updated at 3:11 p.m. ET] Three people were confirmed dead after an earthquake in Guatemala Wednesday, but the number could rise, Guatemalan President Otto Perez Molina said.

Unconfirmed preliminary reports indicate up to 15 people were killed, 15 more were trapped and 100 people are missing after the quake, he said.

[Updated at 2:47 p.m. ET] Guatemalan President Otto Perez Molina said about 125,000 people were without power in Guatemala because of the quake. The president said he had heard reports of some deaths, but declined to confirm any fatalities until his government collects more information.

[Updated at 12:15 p.m. ET] The quake was felt throughout Central America and as far north as Mexico City. There are no immediate reports of damage or injuries.

[Updated at 12:05 p.m. ET] Latest information from the USGS regrades the quake as having a magnitude of 7.4 and locates it 15 miles south of Champerico, Guatemala.

[Updated at 12:02 p.m. ET] There's no tsunami threat to the Pacific region from this quake, according to the Pacific Tsunami Warning Center’s latest bulletin.

[Posted at 11:50 a.m. ET] A 7.5-magnitude earthquake has struck off the coast of Guatemala, the U.S. Geological Survey reports.

The tremor was recorded at a depth of 20.5 miles, some 28 miles southwest of Champerico, close to the border with Mexico.

Are you there? Share your photos with CNN iReport.