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PAGER - M 5.5 - SICHUAN-YUNNAN BORDER REGION, CHINA

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

Earthquake Shaking Alert Level: YELLOW

Download Alert PDFWhat's this?Saturday, August 31st, 2013 at 00:04:18 UTC (08:04:18 local)Location: 28.2° N, 99.4° EDepth: 10kmEvent Id: USB000JE5NAlert Version: 4Created: 5 weeks, 6 days after earthquake.
Global Location

Alert Information

Yellow alert level for economic losses. Some damage is possible and the impact should be relatively localized. Estimated economic losses are less than 1% of GDP of China. Past events with this alert level have required a local or regional level response. Green alert level for shaking-related fatalities. There is a low likelihood of casualties.
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: YELLOW
ESTIMATED ECONOMIC ALERT: YELLOW
ESTIMATED VALUE IN USD (LEVEL)Probability (%)
0 to 1 million (GREEN)
 
33
1 to 10 million (YELLOW)
 
35
10 to 100 million (YELLOW)
 
23
100 million to 1 billion (ORANGE)
 
7
1 to 10 billion (RED)1
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---*2,304k*212k6k8k0000
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 vulnerable to earthquake shaking, though some resistant structures exist. The predominant vulnerable building types are unreinforced brick masonry and adobe block construction.

Historical Earthquakes (with MMI)

Date (UTC)Dist (km)MagMax MMI (#)Shaking Deaths
1973-09-093755.5VII (8k)0
1996-09-241475.5VII (4k)1
1973-02-063657.7IX (31k)2199

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

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.
MMICityPopulation
VIBenzilan0
IVNixi0
IVGezan0
IVYanmen0
IVYunling0
IVBadi0
IIIDayan1,138k
IIIGyigang0
IIIWangda0
IIIYongbei0
IIIZhongxin0

(k = x1,000)

Historical Events Map
Nearby Events in the EXPO-CAT Earthquake Catalog
#Date/TimeMagLat, Lon, DepthCountryMax MMI (Exposed)DeathsSecondary Effects
ShakingTotal
11973-02-06
10:37 UTC
7.731.36° N, 100.5° E
6km
CNIX (31 k)21992199
21973-02-07
16:06 UTC
5.831.47° N, 100.29° E
10km
CNVIII (122)00
31973-09-09
02:13 UTC
5.531.56° N, 99.99° E
11km
CNVII (8 k)00
41975-01-15
11:34 UTC
629.41° N, 101.74° E
34km
CNVIII (157)00
51976-06-09
00:20 UTC
5.924.94° N, 98.75° E
4km
CNVIII (2 k)00
61976-07-21
15:10 UTC
6.124.75° N, 98.64° E
4km
CNVIII (23 k)1111
71976-11-06
18:04 UTC
6.327.63° N, 101° E
9km
CNIX (101)3333
81976-12-13
06:36 UTC
5.927.36° N, 101° E
8km
CNVIII (2 k)22
91979-12-21
06:31 UTC
5.327.03° N, 96.99° E
38km
MMVI (3 k)00
101981-01-23
21:13 UTC
6.530.94° N, 101.11° E
5km
CNIX (6 k)126126
111984-11-28
10:29 UTC
5.726.65° N, 97.02° E
15km
MMVIII (13)00
121986-08-06
19:55 UTC
5.329.28° N, 100.75° E
11km
CNVII (181)22
131989-04-15
20:34 UTC
6.429.98° N, 99.21° E
12km
CNIX (412)88
141989-04-25
02:13 UTC
6.130° N, 99.38° E
7km
CNVIII (456)00
151989-05-03
05:53 UTC
6.230.08° N, 99.45° E
13km
CNIX (15)00landslide
161989-05-03
15:41 UTC
5.830.06° N, 99.51° E
3km
CNVIII (70)00
171989-07-21
03:09 UTC
5.630° N, 99.36° E
6km
CNVII (518)33
181990-08-18
13:38 UTC
5.727.01° N, 101.22° E
15km
CNVIII (855)00
191992-02-06
03:35 UTC
5.629.61° N, 95.62° E
13km
CNVIII (1)00
201992-12-18
11:21 UTC
526.33° N, 100.75° E
22km
CNVI (11 k)11
211993-01-31
19:33 UTC
4.725.83° N, 101.42° E
25km
CNVI (108 k)22
221994-01-11
00:51 UTC
6.125.22° N, 97.18° E
12km
MMVIII (3 k)00
231994-04-06
07:03 UTC
5.826.21° N, 96.8° E
38km
MMVIII (141)00
241995-10-23
22:46 UTC
6.225.98° N, 102.19° E
13km
CNIX (290)5353
251996-02-03
11:14 UTC
6.627.3° N, 100.29° E
4km
CNIX (224 k)309309
261996-02-04
16:58 UTC
5.526.99° N, 100.28° E
17km
CNVII (12 k)00
271996-02-06
07:36 UTC
5.427.14° N, 100.34° E
16km
CNVII (2 k)00
281996-09-24
19:24 UTC
5.527.21° N, 100.33° E
8km
CNVII (4 k)11
291998-10-26
20:01 UTC
4.727.19° N, 100.92° E
25km
CNVI (88 k)00
301998-11-19
11:38 UTC
5.627.26° N, 100.96° E
5km
CNVII (50 k)56landslide
311999-01-02
17:55 UTC
4.527.2° N, 100.99° E
15km
CNVI (3 k)00
322000-01-14
22:09 UTC
5.525.55° N, 101.12° E
14km
CNVII (37 k)77
332000-01-14
23:37 UTC
5.925.56° N, 101.07° E
25km
CNVII (432 k)77
342000-06-07
21:46 UTC
6.326.79° N, 97.14° E
11km
MMIX (6)00
352000-08-21
13:25 UTC
4.925.73° N, 102.24° E
5km
CNVI (60 k)11
362001-02-23
00:09 UTC
5.629.46° N, 101.08° E
7km
CNVIII (14)33
372001-04-12
10:47 UTC
5.624.81° N, 99.05° E
10km
CNVIII (20)22landslide
382001-05-23
21:10 UTC
5.427.62° N, 100.9° E
2km
CNVII (1 k)22
392001-06-07
18:03 UTC
4.624.78° N, 99.06° E
25km
CNVI (156 k)00
402001-10-27
05:35 UTC
5.526.29° N, 100.59° E
6km
CNVII (64 k)11
412003-07-21
15:16 UTC
5.925.95° N, 101.26° E
35km
CNVII (110 k)1616landslide
422003-08-18
09:03 UTC
5.529.55° N, 95.56° E
19km
CNVII (245)00
432003-10-16
12:28 UTC
5.625.88° N, 101.26° E
35km
CNVII (13 k)33
442004-10-18
22:11 UTC
4.825.04° N, 99.06° E
39km
CNV (1,009 k)00
452007-05-07
11:59 UTC
5.531.36° N, 97.79° E
12km
CNVII (855)00
MMICityPopulation
VIBenzilan0
IVNixi0
IVGezan0
IVYanmen0
IVYunling0
IVShengping0
IVBadi0
IVTuoding0
IVXiaruo0
IVDongwang0
IVJiantang0
IVWujing0
IVYezhi0
IVFoshan0
IIIKangpu0
IIIXiaozhongdian0
IIIYangla0
IIICikai0
IIIBaohe0
IIIDayan1,138k
IIIHuangshan0
IIIJinhua0
IIIYunhe0
IIIYunhe0
IIIShangpa0
IIIGartog0
IIIDaxing0
IIIQiaowa0
IIIGyigang0
IIIWangda0
IIIZhongxin0
IIIYongbei0

(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.