PAGER - M 4.3 - ARKANSAS

Alert level does not include impacts from earthquake-related hazards such as tsunamis, landslides, fires or liquefaction.

Earthquake Shaking Alert Level: GREEN

Download Alert PDF What's this?Friday, February 18th, 2011 at 08:13:35 UTC (02:13:35 local)Location: 35.3° N, 92.4° WDepth: 6kmEvent Id: NM1182Alert Version: 1Created: 24 minutes, 56 seconds after earthquake.

Alert Information

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.

Estimated Fatalities

ESTIMATED FATALITY ALERT: GREEN
ESTIMATED FATALITIES (LEVEL)	Probability (%)
0 (GREEN)	78
1 to 9 (YELLOW)	22
10 to 99 (YELLOW)	0
100 to 999 (ORANGE)	0
1 to 10 thousand (RED)	0
10 to 100 thousand (RED)	0
100 thousand + (RED)	0

Estimated Economic Losses

ESTIMATED ECONOMIC ALERT: GREEN
ESTIMATED VALUE IN USD (LEVEL)	Probability (%)
0 to 1 million (GREEN)	65
1 to 10 million (YELLOW)	30
10 to 100 million (YELLOW)	4
100 million to 1 billion (ORANGE)	0
1 to 10 billion (RED)	0
10 to 100 billion (RED)	0
100 billion + (RED)	0

Detailed Information

Estimated Population Exposed to Earthquake Shaking
Estimated Modified Mercalli Intensity		I	II-III	IV	V	VI	VII	VIII	IX	X
Est. Population Exposure		52k*	1,276k	89k	13k	0	0	0	0	0
Perceived Shaking		Not Felt	Weak	Light	Moderate	Strong	Very Strong	Severe	Violent	Extreme
Potential Structure Damage	Resistant	none	none	none	V. Light	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy
Potential Structure Damage	Vulnerable	none	none	none	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy	V. Heavy

*Estimated exposure only includes population within calculated shake map area

Population Exposure
Population per ~1 sq. km. from LandScan

Structure Information Summary

Overall, the population in this region resides in structures that are highly resistant to earthquake shaking, though some vulnerable structures exist.

Historical Earthquakes (with MMI)

Date (UTC)	Dist (km)	Mag	Max MMI (#)
1976-03-25	190	5	VI (40k)
1990-09-26	331	5	V (60k)
2001-05-04	18	4.7	V (11k)

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.

MMI	City	Population
V	Greenbrier	4k
IV	Conway	52k
III	Vilonia	3k
III	Clinton	2k
III	Mayflower	2k
III	Fairfield Bay	2k
II	Jacksonville	31k
II	Little Rock	184k
II	North Little Rock	59k
II	Hot Springs	37k
II	Pine Bluff	53k

(k = x1,000)

Nearby Events in the EXPO-CAT Earthquake Catalog
#	Date/Time	Mag	Lat, Lon, Depth	Country	Max MMI (Exposed)	Deaths		Secondary Effects
#	Date/Time	Mag	Lat, Lon, Depth	Country	Max MMI (Exposed)	Shaking	Total	Secondary Effects
1	1976-03-25 00:41 UTC	5	35.64° N, 90.33° W 15km	US	VI (40 k)	0	0
2	1982-01-21 00:33 UTC	4.7	35.17° N, 92.21° W 2km	US	V (2 k)	0	0
3	1989-04-27 16:47 UTC	4.7	36.01° N, 89.77° W 10km	US	V (32 k)	0	0
4	1990-09-26 13:18 UTC	5	37.17° N, 89.54° W 14km	US	V (60 k)	0	0
5	1991-05-04 01:18 UTC	5	36.56° N, 89.82° W 5km	US	V (30 k)	0	0
6	2001-05-04 06:42 UTC	4.7	35.21° N, 92.19° W 10km	US	V (11 k)	0	0

MMI	City	Population
V	Greenbrier	4k
IV	Conway	52k
III	Vilonia	3k
III	Clinton	2k
III	Mayflower	2k
III	Fairfield Bay	2k
III	Heber Springs	7k
III	Morrilton	7k
III	Maumelle	14k
II	Jacksonville	31k
II	Gibson	5k
II	Gravel Ridge	3k
II	Ward	3k
II	Perryville	1k
II	Cabot	21k
II	Beebe	6k
II	McAlmont	2k
II	Sherwood	23k
II	Atkins	3k
II	Little Rock	184k
II	North Little Rock	59k
II	Kensett	2k
II	Searcy	20k
II	Pottsville	1k
II	Lonoke	5k
II	Judsonia	2k
II	Bald Knob	3k
II	Carlisle	2k
II	East End	6k
II	Ola	1k
II	Wrightsville	2k
II	Des Arc	2k
II	England	3k
II	Hazen	2k
II	Augusta	2k
II	Haskell	3k
II	Newark	1k
II	Cave City	2k
II	Diaz	1k
II	Hot Springs	37k
II	McCrory	2k
II	Newport	7k
II	Russellville	25k
II	White Hall	5k
II	Altheimer	1k
II	Brinkley	3k
II	Clarendon	2k
II	Stuttgart	9k
II	Paris	4k
II	Pine Bluff	53k
II	Tuckerman	2k
II	Bull Shoals	2k
II	Dover	1k
II	Shannon Hills	3k
II	Sweet Home	1k
II	Salem	3k
II	De Witt	3k
II	Bryant	15k
II	Marshall	1k
II	Mountain View	3k
II	Dardanelle	4k
II	Benton	25k
II	Batesville	9k
II	Redfield	1k
II	Danville	3k
II	Hot Springs Village	9k
II	Lamar	2k
II	Melbourne	2k
II	Calico Rock	1k
II	Clarksville	8k
II	Malvern	9k
II	Piney	4k
II	Rockwell	3k
II	Sheridan	4k
II	Yellville	1k
II	Flippin	1k
II	Gassville	2k
II	Lake Hamilton	2k
II	Mountain Home	12k
II	Coal Hill	1k
II	Harrison	12k
II	Horseshoe Bend	2k
II	Ash Flat	1k
II	Salem	2k
II	Cherokee Village	5k
II	Marvell	1k
I	Hoxie	3k
I	Walnut Ridge	5k
I	Glenwood	2k
I	Green Forest	3k
I	Huntsville	2k
I	Pocahontas	7k
I	Berryville	5k
I	Eureka Springs	2k

(k = x1,000)

PAGER content is automatically generated, and only considers losses due to structural damage. Limitations of input data, shaking estimates, and loss models may add uncertainty. PAGER results are generally available within 30 minutes of the earthquake’s occurrence. However, information on the extent of shaking will be uncertain in the minutes and hours following an earthquake and typically improves as additional sensor data and reported intensities are acquired and incorporated into models of the earthquake's source. Users of PAGER estimates should account for uncertainty and always seek the most current PAGER release for any earthquake.