PAGER - M 5.0 - 30 km W of Petrolia, 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?Sunday, October 26th, 2008 at 09:27:22 UTC (02:27:22 local)Location: 40.3° N, 124.6° WDepth: 21kmEvent Id: NC51210149Alert Version: 1Created: 99 weeks, 5 days 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)
 
100
1 to 9 (YELLOW)0
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)
 
90
1 to 10 million (YELLOW)
 
9
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 Exposure4k*128k414000000
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
1980-01-243845.8VII (31k)1
1991-07-132286.8V (51k)0
1993-09-213106VIII (24)1

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
IIIFerndale1k
IIIFortuna11k
IIIRio Dell3k
IIIHydesville1k
IIIHumboldt Hill3k
IIIPine Hills3k
IIICutten4k
IIIEureka26k
IIIMyrtletown5k
IIMcKinleyville15k
IIArcata17k

(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
31980-01-24
19:00 UTC
5.837.71° N, 121.73° W
15km
USVII (31 k)11
41980-01-27
02:33 UTC
5.837.74° N, 121.74° W
15km
USVI (371 k)00
51980-11-08
10:27 UTC
7.341.11° N, 124.3° W
17km
USIX (16 k)00
61983-08-24
13:36 UTC
6.240.29° N, 124.62° W
24km
USVII (2 k)00
71987-07-31
23:56 UTC
640.39° N, 124.2° W
18km
USVIII (4)00
81991-07-13
02:50 UTC
6.842.2° N, 125.76° W
14km
USV (51 k)00
91991-08-17
19:29 UTC
6.140.25° N, 124.11° W
16km
USVIII (255)00
101991-08-17
22:17 UTC
741.75° N, 125.59° W
7km
USV (153 k)00
111992-03-08
03:43 UTC
5.440.26° N, 123.97° W
14km
USVII (53)00
121992-04-25
18:06 UTC
7.240.35° N, 124.07° W
19km
USIX (2 k)00landslide, liquefaction, tsunami
131992-04-26
07:41 UTC
6.540.55° N, 124.25° W
31km
USIX (1 k)00
141992-04-26
11:18 UTC
6.640.43° N, 124.41° W
25km
USIX (40)00
151993-09-21
03:28 UTC
642.31° N, 122° W
9km
USVIII (24)11landslide
161993-09-21
05:45 UTC
5.942.35° N, 122.09° W
35km
USVII (6 k)00
171994-09-01
15:15 UTC
740.38° N, 125.78° W
10km
USV (134 k)00
181994-12-26
14:10 UTC
5.540.71° N, 124.04° W
26km
USVII (85 k)00
191995-02-19
04:03 UTC
6.640.53° N, 125.58° W
20km
USV (97 k)00
201997-01-22
07:17 UTC
5.740.21° N, 124.29° W
15km
USVII (151)00
212000-09-03
08:36 UTC
538.38° N, 122.41° W
10km
USVI (77 k)00
222005-06-15
02:50 UTC
7.241.2° N, 125.98° W
10km
USV (66 k)00

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.