A strong earthquake struck off the coast of Papua New guinea in the South Pacific but did not generate a Pacific-wide tsunami, officials said this morning.

The magnitude 6.6 quake struck 19 miles south-southeast of Taron, Papua New Guinea at a depth of more than 40 miles about 6:04 a.m. Sunday (10:04 a.m. Saturday, Hawaii time), according to the U.S. Geological Survey.

The Pacific Tsunami Warning Center in Ewa Beach said that while no Pacific-wide tsunami was generated, earthquakes of this size can produce locally destructive tsunamis near the epicenter.

Date-Time
Saturday, July 28, 2012 at 20:04:00 UTC

Sunday, July 29, 2012 at 06:04:00 AM at epicenter

Time of Earthquake in other Time Zones

Location
4.733°S, 153.173°E

Depth
66.7 km (41.4 miles)

Region
NEW IRELAND REGION, PAPUA NEW GUINEA

Distances
32 km (19 miles) SSE of Taron, PNG

108 km (67 miles) ESE of Kokopo, Papua New Guinea

309 km (192 miles) WNW of Arawa, Papua New Guinea

347 km (215 miles) ENE of Kimbe, Papua New Guinea

Date-Time
Thursday, July 26, 2012 at 05:33:31 UTC

Thursday, July 26, 2012 at 09:33:31 AM at epicenter

Time of Earthquake in other Time Zones

Location
17.593°S, 66.363°E

Depth
9.8 km (6.1 miles)

Region
MAURITIUS - REUNION REGION

Distances
387 km (240 miles) NE of Port Mathurin, Mauritius

388 km (241 miles) NE of Ile Rodrigues, Northern Mariana Islands

954 km (592 miles) ENE of Bel Air, Mauritius

955 km (593 miles) ENE of Centre de Flacq, Mauritius

A strong earthquake with a magnitude of 6.6 struck off northern Sumatra in Indonesia on Wednesday, the U.S. Geological Survey said, but authorities said there was little chance of a tsunami.

The quake was felt by residents on the island of Simeulue off Sumatra's northwest coast but there were no
immediate reports of damage or injuries.

"The quake has no tsunami potential," said Sutopo Purwo Nugroho, a spokesman for the National Disaster Mitigation Agency. "Some people ran away from their houses. We don't have any house damage."

The Hawaii-based Pacific Tsunami Warning Center said there was no threat of a widespread, destructive tsunami after the quake, about 330 km (205 miles) southeast of Indonesia's Banda Aceh. It said there was a "very small possibility" of a local tsunami.

A magnitude-5.2 earthquake rocked southern Mexico early Tuesday, but there are no damage or injury reports, the U.S. Geological Survey, or USGS, said.

The quake's epicenter, which was located at a depth of 13.2 kilometers (8.2 miles), was 11 kilometers (6.8 miles) south-southeast of San Juan de Cacahuatepec, a town in Oaxaca state, and 24 kilometers (14.9 miles) north of Santiago Pinotepa Nacional, another town on the southern state's Pacific coast.

The earthquake occurred at 12:25 a.m, the USGS said.

Mexico's National Seismological Service confirmed the temblor on its Twitter and estimated the magnitude at 5.62.

The earthquake was felt in Mexico City, but officials have not reported any injuries or damage, media outlets said.

A magnitude-7.4 earthquake on March 20 killed two people in southern Mexico and was followed by dozens of strong aftershocks.

On April 2, a magnitude-6.0 earthquake rocked an area between the southern states of Guerrero and Oaxaca.

Mexico, one of the countries with the highest levels of seismic activity in the world, sits on the North American tectonic plate and is surrounded by three other plates in the Pacific: the Rivera microplate, at the mouth of the Gulf of California; the Pacific plate; and the Cocos plate.

That last tectonic plate stretches from Colima state south and has the potential to cause the most damage since it affects Mexico City, which has a population of 20 million and was constructed over what was once Lake Texcoco.

The magnitude-8.1 earthquake that hit Mexico City on Sept. 19, 1985, was the most destructive to ever hit Mexico, killing some 10,000 people, injuring more than 40,000 others and leaving 80,000 people homeless.

The most recent powerful quake to hit Mexico was a magnitude-7.6 temblor that rocked Colima on Jan. 21, 2003.

Date-Time
Wednesday, July 25, 2012 at 11:20:27 UTC

Wednesday, July 25, 2012 at 10:20:27 PM at epicenter

Time of Earthquake in other Time Zones

Location
9.721°S, 159.730°E

Depth
22.9 km (14.2 miles)

Region
SOLOMON ISLANDS

Distances
39 km (24 miles) SW of Honiara, Solomon Islands

603 km (374 miles) SE of Arawa, Papua New Guinea

1016 km (631 miles) SE of Kokopo, Papua New Guinea

1023 km (635 miles) E of Alotau, Papua New Guinea

Date-Time
Wednesday, July 25, 2012 at 00:27:48 UTC

Wednesday, July 25, 2012 at 07:27:48 AM at epicenter

Location
2.654°N, 96.191°E

Depth
45.9 km (28.5 miles)

Region
SIMEULUE, INDONESIA

Distances
292 km (181 miles) WSW (249°) from Medan, Sumatra, Indonesia 

309 km (192 miles) WNW (290°) from Sibolga, Sumatra, Indonesia

330 km (205 miles) SSE (163°) from Banda Aceh, Sumatra, Indonesia

614 km (382 miles) W (265°) from KUALA LUMPUR, Malaysia

No damage or injuries have been reported after two earthquakes rattled the Northern California coast Friday night.

The U.S. Geological Survey says a magnitude 5.1 quake hit about 78 miles southwest of Eureka at 6:52 p.m. Friday.

Then just after 11 p.m. a magnitude 5.2 earthquake was recorded about 62 miles southwest of Eureka.

A dispatcher at the Eureka Police Department says the quakes were felt in the community, but police had no reports of damage or injuries.

USGS seismologist John Bellini says the quakes took place in an area where there's a lot of seismic activity.

No damage or injuries have been reported after two earthquakes rattled the Northern California coast Friday night. The U.S. Geological Survey says a magnitude 5.1 quake hit about 78 miles southwest of Eureka at 6:52 p.m. Friday. Then just after 11 p.m. a magnitude 5.2 earthquake was recorded about 62 miles southwest of Eureka.

A dispatcher at the Eureka Police Department says the quakes were felt in the community, but police had no reports of damage or injuries. USGS seismologist John Bellini says the quakes took place in an area where there's a lot of seismic activity.

A magnitude 4.5 earthquake has struck Victoria this evening.

The quake struck in Moe, 117km east south east of Melbourne, at 7.11pm.

A number of Twitter users across Victoria have reported feeling tremors but there have been no reports of damage so far.

A seismologist with Geoscience Australia, Jonathan Bathgate, said the quake felt this evening was an aftershock from the 5.4 earthquake that struck 16km southwest of Moe last month.

"There have been in excess of 200 aftershocks since the June 19 earthquake," he said.

"This one is the largest recorded."

The scientist added that the aftershocks could conceivably carry on for a number of weeks.

Members of the public have been urged not to dial triple zero unless there is an emergency.