Alerts

Popocatépetl Volcano Volcanic Ash Advisory: DISCRETE VA EM. to 21000 ft (6400 m)

Published: 6 September 2025
Categories: Global Volcano Activity

RSS feed source: Volcano Discovery.com

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

Click this link to continue reading the article on the source website.

Ibu Volcano Volcanic Ash Advisory: VA TO FL080 OBS AT 07/0120Z MOV W EST VA DTG: 07/0140Z to 8000 ft (2400 m)

Published: 6 September 2025
Categories: Global Volcano Activity

RSS feed source: Volcano Discovery.com

Support Us – Help Us Enhance Our Services! We’re passionate about delivering the latest volcano and earthquake data from around the globe — just for you. However, maintaining our website and free apps requires significant time, effort, and resources.
Your support helps us expand our hardware and software capabilities and empowers our dedicated editorial team. Our mission is to provide uninterrupted, real-time updates whenever an earthquake strikes or a volcano erupts — and your donations make this possible. Every contribution, big or small, is deeply appreciated. If you find our information valuable and want to help us add new features, create compelling content, and improve our technology, please consider making a donation: Donate with Card or Apple/Google Pay: Donate with PayPal: Planned Features: Improved multilingual support Tsunami alerts Faster responsiveness Thanks to your past donations, we have recently

Click this link to continue reading the article on the source website.

Reventador Volcano Volcanic Ash Advisory: VA EM DTCTD

Published: 6 September 2025
Categories: Global Volcano Activity

RSS feed source: Volcano Discovery.com

Support Us – Help Us Enhance Our Services! We’re passionate about delivering the latest volcano and earthquake data from around the globe — just for you. However, maintaining our website and free apps requires significant time, effort, and resources.
Your support helps us expand our hardware and software capabilities and empowers our dedicated editorial team. Our mission is to provide uninterrupted, real-time updates whenever an earthquake strikes or a volcano erupts — and your donations make this possible. Every contribution, big or small, is deeply appreciated. If you find our information valuable and want to help us add new features, create compelling content, and improve our technology, please consider making a donation: Donate with Card or Apple/Google Pay: Donate with PayPal: Planned Features: Improved multilingual support Tsunami alerts Faster responsiveness Thanks to your past donations, we have recently

Click this link to continue reading the article on the source website.

Small 3.4 quake hits near Pomona, Los Angeles County, California, USA

Published: 6 September 2025
Categories: Global Earthquake Activity

RSS feed source: Volcano Discovery.com

Sun, 7 Sep 2025, 00:25 | BY: EARTHQUAKEMONITOR

A very shallow magnitude 3.4 earthquake was reported in the afternoon near Pomona, Los Angeles County, California, USA.
According to the United States Geological Survey, the quake hit on Saturday, September 6th, 2025, at 5:11 pm local time at a very shallow depth of 4.8 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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 Incorporated Research Institutions for Seismology (IRIS), which listed it as a magnitude 3.2 earthquake. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 3.4.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in San Antonio Heights (pop. 3,400) located 6 miles from the epicenter, and Glendora (pop. 52,000) 8 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Upland (pop. 76,400) located 9 miles from the epicenter, Pomona

Click this link to continue reading the article on the source website.