Earthquakes
The U.S. Geological Survey says a 3.6-magnitude temblor struck at 1:17 a.m. Thursday and was centered near the town of Maupin, about 90 southeast of Portland.
The USGS website showed that the quake's intensity was light and very few people reported feeling it.
Quakes of this magnitude rarely cause any problems.
Thursday, December 30, 2010 at 12:55:21 UTC
Thursday, December 30, 2010 at 07:55:21 AM at epicenter
Time of Earthquake in other Time Zones
Location:
40.427°N, 85.888°W
Depth:
4.9 km (3.0 miles) set by location program
Region:
Indiana
Distances:
20 km (15 miles) ESE of Kokomo, Indiana
20 km (15 miles) WSW of Marion, Indiana
40 km (25 miles) S of Wabash, Indiana
75 km (50 miles) NNE of Indianapolis, Indiana
Wednesday, December 29, 2010 at 06:54:21 UTC
Wednesday, December 29, 2010 at 05:54:21 PM at epicenter
Time of Earthquake in other Time Zones
Location:
19.682°S, 168.175°E
Depth:
31 km (19.3 miles)
Region:
VANUATU
Distances:
115 km (70 miles) W of Isangel, Tanna, Vanuatu
210 km (130 miles) N of Tadine, Loyalty Islands, New Caledonia
215 km (135 miles) S of PORT-VILA, Efate, Vanuatu
1770 km (1100 miles) ENE of BRISBANE, Queensland, Australia
Tuesday, December 28, 2010 at 08:34:17 UTC
Tuesday, December 28, 2010 at 08:34:17 PM at epicenter
Time of Earthquake in other Time Zones
Location:
23.375°S, 179.794°W
Depth:
551.6 km (342.8 miles)
Region:
SOUTH OF THE FIJI ISLANDS
Distances:
320 km (200 miles) SSW of Ndoi Island, Fiji
535 km (330 miles) WSW of NUKU'ALOFA, Tonga
610 km (380 miles) SSE of SUVA, Viti Levu, Fiji
1590 km (980 miles) NNE of Auckland, New Zealand

Safety fences are erected around fallen bricks on Madras Street in central Christchurch, New Zealand, on Sunday, after a series of aftershocks.
No one was injured, but at least 20 buildings in the city's center were damaged by the quake, which scientists said was the latest of hundreds of aftershocks since a 7.1 magnitude earthquake struck Christchurch on Sept. 4. That quake caused extensive damage and a handful of injuries, but no deaths.
Sunday's earthquake also came a few hours after a magnitude 7.3 earthquake struck under the sea near Vanuatu. There were no reports of damage or injuries from that quake, though it generated a small tsunami wave.
New Zealand and Vanuatu are situated on the Pacific "ring of fire" - an arc of earthquake and volcanic zones stretching from Chile in South America through Alaska and down through the South Pacific.
Sunday, December 26, 2010 at 02:13:37 UTC
Sunday, December 26, 2010 at 01:13:37 PM at epicenter
Time of Earthquake in other Time Zones
Location:
19.633°S, 168.321°E
Depth:
9.2 km (5.7 miles)
Region:
VANUATU
Distances:
100 km (60 miles) W of Isangel, Tanna, Vanuatu
210 km (130 miles) S of PORT-VILA, Efate, Vanuatu
215 km (135 miles) NNE of Tadine, Loyalty Islands, New Caledonia
1785 km (1110 miles) ENE of BRISBANE, Queensland, Australia

A powerful 7.3-magnitude earthquake struck off the western Pacific nation of Vanuatu on Sunday, triggering a small tsunami exactly six years after giant waves killed 220,000 people around the Indian Ocean.
The Hawaii-based Pacific Tsunami Warning Center said the shallow quake generated a tsunami, but it cancelled a regional warning after the wave measured only 15 centimetres (six inches) higher than normal in Vanuatu.
"Sea level readings confirm that a tsunami was generated," the centre said in its bulletin.
"This tsunami may have been destructive along coastlines of the region near the earthquake epicentre," it said, but cancelled the warning when no destructive wave hit.
The quake struck at 12:16 am on Sunday (1316 GMT Saturday), and the initial tsunami warning covered Vanuatu, Fiji and the French Pacific territory of New Caledonia. There were no reports of damage or casualties.
According to the U.S. Geological Survey (USGS), most were hardly noticeable but one stood out prominently when it hit the Richter scale at a 4.0 on October 11.
Geologists can't say whether the quakes will end anytime soon.
Dr. Horton of the University of Memphis feels that the ample amount of earthquakes in this state is quite unusual.
"In the New Madrid Seismic Zone there's approximately 200 per year, so if we had that many in Central Arkansas in less than a month, something is going on," Dr. Horton told CNN's Sarah Hoye.
The problem is that part of central Arkansas isn't even part of the New Madrid Fault Zone, so researchers are trying to figure out what's causing all those earthquakes.
Saturday, December 25, 2010 at 13:16:37 UTC
Sunday, December 26, 2010 at 12:16:37 AM at epicenter
Time of Earthquake in other Time Zones
Location:
19.775°S, 167.895°E
Depth:
12.3 km (7.6 miles)
Region:
VANUATU REGION
Distances:
145 km (90 miles) W of Isangel, Tanna, Vanuatu
195 km (120 miles) N of Tadine, Loyalty Islands, New Caledonia
230 km (145 miles) S of PORT-VILA, Efate, Vanuatu
1740 km (1080 miles) ENE of BRISBANE, Queensland, Australia
The quake occurred at a depth of 63 miles south-southwest of the capital of San Juan, according to the U.S. Geological Survey.
Blanca Saez, Ports Authority spokeswoman, told the Associated Press that the international airport is operating as usual. She said six ceiling panels fell at the American Airlines terminal, but that no one was injured.
The earthquake was centered just a couple of miles from the central mountain town of Aguas Buenas.
Emergency officials and police told local media that no damage or injuries have been reported.
Heriberto Sauri, emergency management director, told El Nuevo Dia newspaper that crews would inspect buildings at daylight if necessary.
Comment: From USGS website:
Magnitude 5.4 - PUERTO RICO
Date-Time:
Friday, December 24, 2010 at 23:43:44 UTC
Friday, December 24, 2010 at 07:43:44 PM at epicenter
Time of Earthquake in other Time Zones
Location:
18.260°N, 66.135°W
Depth:
102 km (63.4 miles)
Region:
PUERTO RICO
Distances:
3 km (2 miles) W (277°) from Aguas Buenas, PR
5 km (3 miles) N (355°) from Santa Clara, PR
7 km (4 miles) W (276°) from Bairoa, PR
9 km (6 miles) NNW (346°) from Bayamon, PR
16 km (10 miles) S (172°) from Bayam�n, PR
19 km (12 miles) SSW (205°) from San Juan, PR
Location Uncertainty:
Horizontal +/- 170 km (105.6 miles); depth +/- 0.9 km (0.6 miles)
Parameters:
NST= 52, Nph= 52, Dmin=42.4 km, Rmss=0.28 sec, Gp=184°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=3
Source:
Puerto Rico Seismic Network, University of Puerto Rico
Event ID:
pr10358004
Comment: From USGS:
Date-Time:
Thursday, December 30, 2010 at 09:17:46 UTC
Thursday, December 30, 2010 at 01:17:46 AM at epicenter
Time of Earthquake in other Time Zones
Location:
45.132°N, 120.932°W
Depth:
16.6 km (10.3 miles) set by location program
Region:
Oregon
Distances:
13 km (8 miles) ESE (112°) from Maupin, OR
20 km (12 miles) NW (316°) from Shaniko, OR
23 km (14 miles) SE (124°) from Tygh Valley, OR
140 km (87 miles) ESE (107°) from Portland, OR
Location Uncertainty:
horizontal +/- 1.1 km (0.7 miles); depth fixed by location program
Parameters:
NST= 41, Nph= 42, Dmin=12 km, Rmss=0.33 sec, Gp= 97°,
M-type=duration magnitude (Md), Version=1
Source:
Pacific Northwest Seismograph Network
Event ID:
uw12300917