PAGER - M 6.8 - OFFSHORE BIO-BIO, CHILE

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?Friday, February 11th, 2011 at 20:05:30 UTC (17:05:30 local)Location: 36.3° S, 73° WDepth: 18kmEvent Id: USB0001CKUAlert Version: 4Created: 1 day, 1 hour 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)
 
65
1 to 9 (YELLOW)
 
30
10 to 99 (YELLOW)
 
4
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)
 
66
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 IntensityIII-IIIIVVVIVIIVIIIIXX
Est. Population Exposure---*1,226k*1,426k1,257k395k0000
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 resistant to earthquake shaking, though some vulnerable structures exist. The predominant vulnerable building types are low-rise reinforced/confined masonry and adobe block construction.

Historical Earthquakes (with MMI)

Date (UTC)Dist (km)MagMax MMI (#)Shaking Deaths
1974-08-182367.1IX (9k)0
1985-03-033737.9VII (5m)177
2004-05-031596.6IX (23k)0

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

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.
MMICityPopulation
VITalcahuano253k
VITome47k
VPenco46k
VArauco25k
VConcepcion215k
VCauquenes31k
VChillan150k
IVLos Angeles125k
IVTalca197k
IVCurico102k
IIIRancagua213k

(k = x1,000)

Historical Events Map
Nearby Events in the EXPO-CAT Earthquake Catalog
#Date/TimeMagLat, Lon, DepthCountryMax MMI (Exposed)DeathsSecondary Effects
ShakingTotal
11973-07-31
05:41 UTC
5.537.72° S, 73.43° W
29km
CLVII (34 k)00
21973-10-05
05:45 UTC
6.532.97° S, 71.89° W
39km
CLVII (556 k)00
31973-10-05
05:47 UTC
6.733.07° S, 71.94° W
30km
CLVIII (2 k)00
41973-10-05
07:07 UTC
5.632.94° S, 71.93° W
34km
CLVII (24)00
51974-08-18
10:44 UTC
7.138.43° S, 73.46° W
9km
CLIX (9 k)00
61975-05-10
14:27 UTC
7.838.21° S, 73° W
30km
CLVIII (69 k)00
71975-05-28
13:57 UTC
5.837.97° S, 73.43° W
23km
CLVIII (3 k)00
81979-04-26
02:00 UTC
5.933.91° S, 72.05° W
26km
CLVII (8 k)00
91981-03-23
19:28 UTC
6.433.66° S, 71.97° W
22km
CLVII (623)00
101981-10-16
03:25 UTC
7.133.2° S, 73.05° W
32km
CLVI (29 k)01
111985-03-03
22:46 UTC
7.933.17° S, 71.87° W
31km
CLVIII (301 k)0177tsunami
121985-03-03
22:47 UTC
7.933.14° S, 71.76° W
35km
CLVII (5,433 k)177177liquefaction, tsunami
131985-03-04
00:27 UTC
5.533.14° S, 71.63° W
29km
CLVII (342 k)00
141985-03-04
00:32 UTC
7.433.24° S, 71.74° W
40km
CLVIII (131)00
151985-03-04
03:17 UTC
6.234.16° S, 72.06° W
44km
CLVII (19 k)00
161985-03-04
03:32 UTC
6.632.87° S, 71.85° W
67km
CLVII (219 k)00
171985-03-04
06:06 UTC
6.333.91° S, 72.06° W
24km
CLVIII (69)00
181985-03-04
06:17 UTC
6.333.13° S, 71.92° W
25km
CLVIII (66)00
191985-03-04
13:49 UTC
5.733.92° S, 72.22° W
35km
CLVI (6 k)00
201985-03-09
15:11 UTC
5.833.69° S, 72.27° W
28km
CLVI (2 k)00
211985-03-19
04:01 UTC
6.633.23° S, 71.66° W
46km
CLIX (991)00
221985-03-23
13:45 UTC
5.734.31° S, 72.2° W
30km
CLVII (12 k)00
231985-03-24
16:16 UTC
5.734.32° S, 72.23° W
25km
CLVII (12 k)00
241985-03-25
05:14 UTC
6.334.27° S, 72.17° W
38km
CLVIII (154)00
251985-06-02
16:26 UTC
5.937.86° S, 73.9° W
6km
CLVI (2 k)00
261985-07-07
11:25 UTC
632.98° S, 72.03° W
33km
CLVII (52 k)00
271985-08-12
00:04 UTC
6.238.48° S, 73.67° W
22km
CLVII (3 k)00
281986-12-19
05:47 UTC
533.07° S, 72.08° W
33km
CLV (236 k)00
291987-02-03
16:42 UTC
5.837.75° S, 73.01° W
33km
CLVII (11 k)00
301987-05-14
15:57 UTC
5.833.74° S, 72.16° W
30km
CLVII (1)00
311987-09-13
20:08 UTC
5.934.35° S, 70.03° W
15km
CLVIII (69)00
321988-03-13
11:31 UTC
5.833.67° S, 72.24° W
24km
CLVI (2 k)00
331988-05-21
14:28 UTC
6.133.01° S, 71.85° W
35km
CLVII (399 k)00
341990-04-21
18:54 UTC
5.836.96° S, 73.33° W
13km
CLVII (17 k)00
351990-04-22
20:25 UTC
5.638.01° S, 73.44° W
27km
CLVII (22 k)00
361992-05-18
03:02 UTC
6.133.61° S, 72° W
32km
CLVII (89 k)00
371992-05-22
01:20 UTC
5.633.7° S, 72.01° W
28km
CLVII (310)00
381993-07-16
21:21 UTC
5.633.22° S, 71.99° W
29km
CLVII (89)00
391993-12-04
23:16 UTC
5.633.9° S, 72.05° W
30km
CLVII (628)00
401995-03-22
20:05 UTC
5.536.27° S, 73° W
35km
CLVII (1)00
411995-03-23
09:18 UTC
5.536.29° S, 73.12° W
25km
CLVII (121)00
421995-11-21
18:17 UTC
5.733.21° S, 71.97° W
36km
CLVII (7)00
431996-02-22
13:40 UTC
5.933.59° S, 71.55° W
47km
CLVII (114 k)00landslide
441998-10-10
04:12 UTC
5.633.5° S, 71.97° W
43km
CLVI (120 k)00
451999-03-05
03:35 UTC
5.934.64° S, 69.72° W
41km
ARVII (243)00
462001-01-07
10:18 UTC
5.933.49° S, 72.12° W
18km
CLV (1,643 k)00
472001-07-24
17:42 UTC
5.232.97° S, 71.58° W
43km
CLVI (273 k)00
482003-06-02
02:52 UTC
5.532.93° S, 71.91° W
30km
CLVI (405 k)00
492004-05-03
04:36 UTC
6.637.74° S, 73.33° W
21km
CLIX (23 k)00
502004-06-15
11:16 UTC
5.938.87° S, 73.28° W
38km
CLVII (78 k)00
512004-08-28
13:41 UTC
6.534.92° S, 70.46° W
20km
CLIX (346)00
522004-09-07
12:33 UTC
5.734° S, 72.21° W
17km
CLVI (88)00
532006-12-31
14:55 UTC
5.537.94° S, 71.11° W
20km
CLVII (141)00
MMICityPopulation
VITalcahuano253k
VITome47k
VPenco46k
VArauco25k
VConcepcion215k
VCauquenes31k
VChiguayante83k
VBulnes13k
VChillan150k
VCoronel93k
VLota50k
VConstitucion38k
VYumbel11k
VCabrero18k
VSan Carlos32k
VParral27k
VCoihueco7k
IVLa Laja17k
IVAngol45k
IVLongavi6k
IVCuranilahue31k
IVLos Angeles125k
IVNacimiento21k
IVSan Vicente23k
IVLinares70k
IVSanta Cruz33k
IVSan Javier22k
IVSan Clemente14k
IVLebu22k
IVTalca197k
IVMulchen22k
IVCollipulli16k
IVCanete20k
IVCurico102k
IIIMolina29k
IIITraiguen14k
IIIVictoria25k
IIILautaro22k
IIITeno7k
IIIVilcun9k
IIIChimbarongo17k
IIIRengo38k
IIIRancagua213k
IIIMachali28k
IIIGraneros23k

(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.