Small earthquake measuring 2.5 Mcd shakes southeastern Missouri

Update: Another mini-EQ in New Madrid zone

[July 31, 2009]  Preliminary earthquake report:

Region: Southeastern Missouri

Geographic coordinates: 36.559N, 90.535W

Magnitude: 2.5 Mcd

Depth: 16 km

Universal Time (UTC): July 31, 10:13:14

Time near the epicenter: July 31, 05:13:14

Local standard time in your area: July 31, 04:13:14

Location with respect to nearby cities:

• 2 km (1 mile) west (274 degrees) of Neelyville, Mo.

• 6 km (4 miles) east-southeast (105 degrees) of Naylor, Mo.

• 17 km (11 miles) north-northeast (16 degrees) of Corning, Ark.

• 168 km (104 miles) north-northwest (343 degrees) of Memphis, Tenn.

• 231 km (144 miles) south (186 degrees) of St. Louis, Mo.

Preliminary report on 2.2 Mcd quake:

Region: Southeastern Missouri

Geographic coordinates: 37.384N, 90.063W

Magnitude: 2.2 Mcd

Depth: 16 km

Universal Time (UTC): July 31, 14:33:20

Time near the epicenter: July 31, 09:33:20

Local standard time in your area: July 31, 08:33:20

Location with respect to nearby cities:

• 8 km (5 miles) north-northwest (338 degrees) of Glen Allen, Mo.

• 10 km (6 miles) east-southeast (118 degrees) of Marquand, Mo.

• 12 km (7 miles) northwest (319 degrees) of Marble Hill, Mo.

• 139 km (86 miles) south (173 degrees) of St. Louis, Mo.

[Text from files received from Terry Storer, Logan County Emergency Management Agency]