Mount Shasta RSS feed of news related to Mount Shasta en Stratovolcano flank vents and the origin of Black Butte;utm_medium=rss&amp;utm_campaign=news <p>You might envision a stratovolcano as one massive cone with a single summit crater. But in reality, volcanoes are complex constructions that may have multiple vents, even on their slopes.</p> Mon, 24 Apr 2023 18:16:30 EDT d7d5ae45-f417-4115-a61c-0e1a593553f9 ( U.S. Geological Survey Lidar reveals the true faces of California's volcanoes;utm_medium=rss&amp;utm_campaign=news <p>Volcanoes in California (and everywhere!) are often covered with vegetation, including thick forests. Fortunately, the USGS can use laser technology to cut through the canopy and reveal the geology beneath.</p> Tue, 4 Apr 2023 12:53:28 EDT 458d2904-4102-4114-b9c3-865ef459c30e ( U.S. Geological Survey Gas sampling at Mount Shasta builds a long-term record of volcanic emissions;utm_medium=rss&amp;utm_campaign=news <p>One of the three main ways that California Volcano Observatory scientists monitor the state’s threatening volcanoes is by sampling the gases that are released from magma deep below (in addition to monitoring seismicity and deformation).</p> Fri, 4 Jun 2021 06:30:00 EDT 0cac41ff-00e5-4a8b-8a59-c63e692b5031 ( U.S. Geological Survey Unpacking CalVO's new seismic monitoring boxes;utm_medium=rss&amp;utm_campaign=news <p>If you've noticed any changes to the earthquake counts released in CalVO's weekly updates, don't worry - some behind-the-scenes improvements to our monitoring system have been implemented which allow us to focus on unrest specifically related to our volcanoes and volcanic regions.</p> Wed, 13 May 2020 12:30:00 EDT 451e9ab8-a189-4935-95b1-3cac0ee42b33 ( U.S. Geological Survey Which U.S. volcanoes pose a threat?;utm_medium=rss&amp;utm_campaign=news <p><strong><em>USGS Volcanic Threat Assessment updates the 2005 rankings.</em></strong></p> Wed, 19 Dec 2018 06:30:00 EST 08f5af1a-b03f-47b2-b491-2519c2d0c27e ( U.S. Geological Survey Explore California's volcanic legacy and future with new field trip guides;utm_medium=rss&amp;utm_campaign=news <p>California is well-known for its frequent earthquakes, but less so for its volcanic history – despite the fact that the most recent eruption in the state occurred just 100 years ago.</p> Wed, 5 Apr 2017 06:15:00 EDT af29f4da-c0a3-4b63-bf8a-0bb6d92c6aa5 ( U.S. Geological Survey Volcano Watch — Exploring USGS volcano observatories—Part 3: California;utm_medium=rss&amp;utm_campaign=news <p>This month, our Volcano Watch articles are exploring U.S. Geological Survey (USGS) volcano observatories and their connections to Hawai‘i. This week: California, here we come!</p> Thu, 19 Jan 2017 01:00:00 EST 83fb98b7-b58a-4cfe-8b43-89902fff8ade ( U.S. Geological Survey Fieldwork "Fun" Has Begun;utm_medium=rss&amp;utm_campaign=news <p>Summer has arrived, and for many CalVO scientists, so has the season of fieldwork. During the fall, winter and spring, many of California's volcanoes are covered with snow, and challenging weather conditions make fieldwork difficult and time consuming.</p> Mon, 27 Jun 2016 10:15:00 EDT f228bae4-2997-4c69-ab01-848912c240ab ( U.S. Geological Survey Mount Shasta earthquake series poses no immediate hazard;utm_medium=rss&amp;utm_campaign=news <p>Since February 19, 2015 an ongoing series of small earthquakes has been occurring approximately 5 miles southeast of the summit of Mount Shasta, near the Clear Creek Trailhead on a regional, unnamed fault at about 3-5 miles depth.</p> Fri, 3 Apr 2015 06:00:00 EDT 1606179e-4780-4ebc-a58d-72d994a72c5a ( U.S. Geological Survey Mount Shasta debris flow not linked to volcanic activity;utm_medium=rss&amp;utm_campaign=news <p>On the afternoon of September 20, a large volume of water surged down Mount Shasta's south flank into Mud Creek, entraining debris and inundating the drainage and roads near McCloud, California.</p> Thu, 25 Sep 2014 05:15:00 EDT 3366f080-11d1-4956-abb7-0b97fd226542 ( U.S. Geological Survey