Earthquakes
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. Horton thinks, the earthquake swarm could be the result of injecting salt water into old natural gas wells to force more gas production. "There's salt water that's a by product of the natural gas industry in that area and then disposed in a well," said Dr. Horton.
Even though the two areas are not connected, Horton's biggest worry is along the New Madrid Fault where he said damage from a magnitude six earthquake could be catastrophic to Mid-Southerners. "A probability of having that in a 50-year period is about 25 to 40-percent chance," said Dr. Horton.
Monday, December 13, 2010 at 01:14:43 UTC
Monday, December 13, 2010 at 11:14:43 AM at epicenter
Time of Earthquake in other Time Zones
Location:
6.563°S, 155.658°E
Depth:
144.8 km (90.0 miles)
Region:
BOUGAINVILLE REGION, PAPUA NEW GUINEA
Distances:
40 km (25 miles) SSE of Arawa, Bougainville, PNG
100 km (65 miles) W of Chirovanga, Choiseul, Solomon Islands
990 km (610 miles) ENE of PORT MORESBY, Papua New Guinea
2325 km (1450 miles) N of BRISBANE, Queensland, Australia
The Log Cabin Democrat newspaper at Conway reported Thursday that the earthquakes, all of them small, were recorded as occurring in the vicinity of Guy in the northern part of the county from Dec. 3 through Wednesday, with 25 quakes recorded on Sunday.
The largest of the quakes had a magnitude of 2.6. Researchers say quakes of 2.5 to 3.0 magnitude are typically the smallest felt by humans.
There were no reports of injuries or structural damage.
The quake struck at 4:17 am with its epicenter 64 kilometres east of Zhob in Baluchistan, at a depth of 19 kilometers, the United States Geological Survey said. Tremors were felt in Faisalabad, Vehari, Jhang, Dera Ismail Khan as well as tribal areas. Unsettled by the sudden shocks, people came out of their houses, whereas no reports of any kind of losses have been received.
From USGS:
Date-Time:
Thursday, December 09, 2010 at 23:17:32 UTC
Friday, December 10, 2010 at 04:17:32 AM at epicenter
Time of Earthquake in other Time Zones
Location:
31.557°N, 70.140°E
Depth:
9.8 km (6.1 miles)
Wednesday, December 08, 2010 at 06:47:18 UTC
Wednesday, December 08, 2010 at 02:47:18 PM at epicenter
Time of Earthquake in other Time Zones
Location:
7.380°N, 126.603°E
Depth:
69.6 km (43.2 miles)
Region:
MINDANAO, PHILIPPINES
Distances:
115 km (70 miles) SSE of Hinatuan, Mindanao, Philippines
115 km (70 miles) ENE of Davao, Mindanao, Philippines
210 km (130 miles) SE of Butuan, Mindanao, Philippines
1005 km (630 miles) SE of MANILA, Philippines
Wednesday, December 08, 2010 at 05:24:33 UTC
Wednesday, December 08, 2010 at 03:24:33 AM at epicenter
Time of Earthquake in other Time Zones
Location:
56.440°S, 25.866°W
Depth:
17.3 km (10.8 miles) set by location program
Region:
SOUTH SANDWICH ISLANDS REGION
Distances:
85 km (55 miles) ENE of Visokoi Island, South Sandwich Islands
290 km (180 miles) N of Bristol Island, South Sandwich Islands
3480 km (2160 miles) SE of BUENOS AIRES, D.F., Argentina
From USGS:
Date-Time:
Thursday, December 02, 2010 at 03:12:10 UTC
Thursday, December 02, 2010 at 01:12:10 PM at epicenter
Time of Earthquake in other Time Zones
Location:
6.059°S, 149.851°E
Depth:
34.8 km (21.6 miles) set by location program
Region:
NEW BRITAIN REGION, PAPUA NEW GUINEA
Distances:
40 km (25 miles) ENE of Kandrian, New Britain, PNG
65 km (40 miles) SSW of Kimbe, New Britain, PNG
475 km (295 miles) NE of PORT MORESBY, Papua New Guinea
2400 km (1490 miles) N of BRISBANE, Queensland, Australia

Tremors: The earthquake, which measured 3.9 Ritcher Scale, was felt as far away as New York City
The quake, which was recorded at 10.46am local time, measured 3.9 on the Richter Scale, according to the U.S. Geological Survey.
The event occurred about 80 miles south-east of Southampton, on New York's Long Island, and about 120 miles east of Toms River, New Jersey.
Most reports of light shaking came from Long Island and Connecticut.
Wednesday, December 01, 2010 at 16:01:27 UTC
Thursday, December 02, 2010 at 04:01:27 AM at epicenter
Time of Earthquake in other Time Zones
Location:
15.905°S, 178.948°W
Depth:
15.2 km (9.4 miles)
Region:
FIJI REGION
Distances:
185 km (115 miles) ENE of Lambasa, Vanua Levu, Fiji
195 km (120 miles) SSW of Sigave, Ile Futuna, Wallis and Futuna
375 km (230 miles) NE of SUVA, Viti Levu, Fiji
2400 km (1490 miles) NNE of Auckland, New Zealand
The China Earthquake Networks Center, which reported the quake was magnitude 5.2 on the Richter scale, said the epicenter was in Gedar township in Damxung county near the capital.
Comment: There seems to be a good deal of activity in this area. See USGS Records 53 Quakes In Week In Arkansas County