RSS feed source: USGS Earthquake Hazards Program

* WHAT…Visibility one quarter mile or less in dense fog. * WHERE…Petersburg Borough and City and Borough of Wrangell. * WHEN…Until 10 AM AKDT this morning. * IMPACTS…Hazardous driving conditions due to low visibility.

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RSS feed source: USGS Earthquake Hazards Program

87 km (54 mi)

NW of epicenter

Zhefang

(pop: 51,500)

II: Very weak

Dehong Daizu Jingpozu Zizhizhou, Yunnan Sheng 93 km (58 mi)

N of epicenter

Fengping

(pop: 69,600)

II: Very weak

Dehong Daizu Jingpozu Zizhizhou, Yunnan Sheng 95 km (59 mi)

NW of epicenter

Mengmao

(pop: 112,600)

II: Very weak

Dehong Daizu Jingpozu Zizhizhou, Yunnan Sheng 96 km (60 mi)

N of epicenter

Menghuan

(pop: 100,000)

II: Very weak

Dehong Daizu Jingpozu Zizhizhou, Yunnan Sheng 99 km (61 mi)

N of epicenter

Mangshi

(pop: 46,400)

II: Very weak

Dehong Daizu Jingpozu Zizhizhou, Yunnan Sheng 112 km (70 mi)

NW of epicenter

Zhangfeng

(pop: 53,400)

II: Very weak

Dehong Daizu Jingpozu Zizhizhou, Yunnan Sheng 113 km (70 mi)

N of epicenter

Longling County

(pop: 270,000)

II: Very weak

Dehong Daizu Jingpozu Zizhizhou, Yunnan Sheng 118 km (73 mi)

SE of epicenter

Mujia

(pop: 16,200)

II: Very weak

Pu’er, Yunnan Sheng 118 km (73 mi)

SW of epicenter

Lashio

(pop: 131,000)

II: Very weak

Shan State 126 km (78 mi)

N of epicenter

Puchuan

(pop: 27,000)

II: Very weak

Baoshan Shi, Yunnan Sheng 127 km (79 mi)

N of epicenter

Tuantian

(pop: 17,500)

II: Very weak

Baoshan Shi, Yunnan Sheng 131 km (82 mi)

SE of epicenter

Shangyun

(pop: 44,900)

II: Very weak

Pu’er,

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Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America’s 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian

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