PAGER - M 4.5 - 3.9 km (2.4 mi) N of Talmage, CA

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

Earthquake Shaking Alert Level: GREEN

Download Alert PDFWhat's this?Tuesday, September 25th, 2012 at 15:15:09 UTC (08:15:09 local)Location: 39.2° N, 123.2° WDepth: 11kmEvent Id: NC71847715Alert Version: 9Created: 12 hours, 33 minutes after earthquake.
Global Location

Alert Information

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Estimated FatalitiesFatality Alert Level: GREEN
ESTIMATED FATALITY ALERT: GREEN
ESTIMATED FATALITIES (LEVEL)Probability (%)
0 (GREEN)
 
99
1 to 9 (YELLOW)1
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 LossesEconomic Alert Level: GREEN
ESTIMATED ECONOMIC ALERT: GREEN
ESTIMATED VALUE IN USD (LEVEL)Probability (%)
0 to 1 million (GREEN)
 
99
1 to 10 million (YELLOW)1
10 to 100 million (YELLOW)0
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 IntensityIII-IIIIVVVIVIIVIIIIXX
Est. Population Exposure527k85k0000000
Perceived ShakingNot FeltWeakLightModerateStrongVery StrongSevereViolentExtreme
Potential Structure DamageResistantnonenonenoneV. LightLightModerateModerate/HeavyHeavyV. Heavy
VulnerablenonenonenoneLightModerateModerate/HeavyHeavyV. HeavyV. Heavy
*Estimated exposure only includes population within calculated shake map area
Population Exposure
Population per ~1 sq. km. from LandScan
Population Exposure Map

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)MagMax MMI (#)Shaking Deaths
2005-06-153297.2V (66k)0
1989-08-082515.4VII (4k)1
1989-10-182596.9IX (3k)62

Recent earthquakes in this area have caused secondary hazards such as landslides and liquefaction that might have contributed to losses.

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.
MMICityPopulation
IIITalmage1k
IIIUkiah16k
IIIWillits5k
IIUpper Lake1k
IILakeport5k
IILaytonville1k
ISanta Rosa155k
IVacaville96k
IRohnert Park41k
IWindsor25k
IClearlake15k

(k = x1,000)

Historical Events Map
Nearby Events in the EXPO-CAT Earthquake Catalog
#Date/TimeMagLat, Lon, DepthCountryMax MMI (Exposed)DeathsSecondary Effects
ShakingTotal
11975-08-01
20:20 UTC
5.839.5° N, 121.4° W
6km
USVIII (3 k)00
21976-11-26
11:19 UTC
6.741.32° N, 125.77° W
0km
USV (76 k)00
31979-08-06
17:05 UTC
5.737.07° N, 121.6° W
8km
USVIII (152)00
41980-01-24
19:00 UTC
5.837.71° N, 121.73° W
15km
USVII (31 k)11
51980-01-27
02:33 UTC
5.837.74° N, 121.74° W
15km
USVI (371 k)00
61980-11-08
10:27 UTC
7.341.11° N, 124.3° W
17km
USIX (16 k)00
71983-08-24
13:36 UTC
6.240.29° N, 124.62° W
24km
USVII (2 k)00
81984-04-24
21:15 UTC
6.237.31° N, 121.71° W
9km
USIX (1)00
91986-01-26
19:20 UTC
5.436.75° N, 121.36° W
6km
USVII (2 k)00
101986-03-31
11:55 UTC
5.637.53° N, 121.59° W
6km
USVII (117)00
111987-07-31
23:56 UTC
640.39° N, 124.2° W
18km
USVIII (4)00
121988-06-27
18:43 UTC
5.737.13° N, 121.88° W
13km
USVIII (6)00
131989-08-08
08:13 UTC
5.437.13° N, 121.93° W
15km
USVII (4 k)11
141989-10-18
00:04 UTC
6.937.11° N, 121.77° W
11km
USIX (3 k)6263landslide, tsunami
151991-08-17
19:29 UTC
6.140.25° N, 124.11° W
16km
USVIII (255)00
161991-08-17
22:17 UTC
741.75° N, 125.59° W
7km
USV (153 k)00
171992-03-08
03:43 UTC
5.440.26° N, 123.97° W
14km
USVII (53)00
181992-04-25
18:06 UTC
7.240.35° N, 124.07° W
19km
USIX (2 k)00landslide, liquefaction, tsunami
191992-04-26
07:41 UTC
6.540.55° N, 124.25° W
31km
USIX (1 k)00
201992-04-26
11:18 UTC
6.640.43° N, 124.41° W
25km
USIX (40)00
211993-09-21
03:28 UTC
642.31° N, 122° W
9km
USVIII (24)11landslide
221993-09-21
05:45 UTC
5.942.35° N, 122.09° W
35km
USVII (6 k)00
231994-09-01
15:15 UTC
740.38° N, 125.78° W
10km
USV (134 k)00
241994-09-12
12:23 UTC
5.938.86° N, 119.71° W
5km
USVIII (14 k)00
251994-12-26
14:10 UTC
5.540.71° N, 124.04° W
26km
USVII (85 k)00
261995-02-19
04:03 UTC
6.640.53° N, 125.58° W
20km
USV (97 k)00
271995-12-28
18:27 UTC
5.538.78° N, 119.55° W
5km
USVII (2 k)00
281997-01-22
07:17 UTC
5.740.21° N, 124.29° W
15km
USVII (151)00
291998-08-12
14:10 UTC
5.236.68° N, 121.53° W
9km
USVII (1 k)00
302000-09-03
08:36 UTC
538.38° N, 122.41° W
10km
USVI (77 k)00
312005-06-15
02:50 UTC
7.241.2° N, 125.98° W
10km
USV (66 k)00
MMICityPopulation
IIITalmage1k
IIIUkiah16k
IIIWillits5k
IIUpper Lake1k
IILakeport5k
IILaytonville1k
IILucerne3k
IIKelseyville3k
IINice3k
ICloverdale7k
IClearlake Oaks2k
IMiddletown1k
IAngwin3k
IArbuckle3k
ICalistoga5k
IClearlake15k
ICobb2k
IColusa6k
ICorning7k
ICottonwood4k
ICovelo1k
IDeer Park1k
IEldridge2k
IEsparto2k
IForestville2k
IFort Bragg7k
IGraton2k
IGuerneville3k
IHamilton City2k
IHealdsburg11k
IHidden Valley Lake5k
ILower Lake2k
IMonte Rio1k
IOccidental1k
IOrland6k
IRohnert Park41k
IRoseland6k
ISaint Helena6k
ISanta Rosa155k
ISebastopol8k
IVacaville96k
IWilliams4k
IWillows6k
IWindsor25k
IWinters7k
IYountville3k

(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.