RSS feed source: USGS Earthquake Hazards Program
PAGER – GREEN ShakeMap – VI DYFI? – V
Time2025-07-19 21:37:47 UTC2025-07-19 21:37:47 UTC at epicenterLocation36.844°N 54.940°EDepth10.00 km (6.21 mi)
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RSS feed source: USGS Earthquake Hazards Program
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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RSS feed source: USGS Earthquake Hazards Program
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RSS feed source: USGS Earthquake Hazards Program
Sat, 19 Jul 2025, 21:46 | BY: EARTHQUAKEMONITOR
Iran was shaken near Shahrud, Semnan Province, by an earthquake of magnitude 5.2 only 7 minutes ago, the European-Mediterranean Seismological Centre (EMSC) reported.
The quake hit at a moderately shallow depth of 35. km beneath the epicenter near Shahrud, Semnan Province, Iran, after midnight on Sunday, July 20th, 2025, at 12:37 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the German Research Centre for Geosciences (GFZ), which listed it as a magnitude 5.3 earthquake. A third agency, the citizen-seismograph network of RaspberryShake, reported the same quake at magnitude 5.3.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Shahrud (pop. 131,900) located 34 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Azadshahr (pop. 47,600) located 43 km from the epicenter, Gonbad-e Kavus (pop. 131,400) 60 km away, Bandar-e Torkaman (pop. 54,000) 86 km away, and Damghan (pop. 67,700) 86 km away.
VolcanoDiscovery will
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