(510) 528-8550, Subscription Customer Service: San Francisco Mountain is the only stratovolcano in the San Francisco Volcanic Field and was built by eruptions between about 1 and 0.4 million years ago. SAN FRANCISCO (CBS SF/AP) – California’s next ‘big one’ may not be an earthquake. The San Francisco volcanic field (SFVF) in northern Arizona, USA, contains over 600 volcanoes and vents that formed during the last 6 million years (e.g. San Francisco Volcanic Field Vulkan Ausbrüche. The San Francisco Volcanic Field lies on the southern margin of the Colorado Plateau near its boundary with the Basin and Range Province (Figure 1). Media in category "San Francisco volcanic field" The following 72 files are in this category, out of 72 total. It ceased erupting just 10,000 years ago—a geologic blink of an eye. The San Francisco Volcanic Field, which covers about 1,800 square miles, is part of northern Arizona’s spectacular landscape. The San Francisco Volcanic Field covers 1,800 square mile in northern Arizona with volcanoes that are up to 6 million years old. The area presents some of Arizona's most impressive landscapes and geology. Berkeley, CA 94710 San Francisco Mountain San Francisco Mountain is a stratovolcano in the San Francisco Volcanic Field and was built by eruptions between about 1 million and 93,000 years ago. Konocti (Pomo for “Mountain Woman”) is in the Clear Lake volcanic field, which has been active for at least 2 million years. Volcano Number Last Known Eruption Elevation Latitude Longitude: 329020 1075 CE 3850 … Share your love of Bay Area nature with a Bay Nature gift subscription and save over 30%! Bay Nature connects the people of the San Francisco Bay Area to our natural  world and motivates people to solve problems with nature in mind. Bill Wade is a geologist and a 12-year member of Flagstaff’s USFS/NPS Interpretive Partnership. Konocti (Pomo for “Mountain Woman”) is in the Clear Lake volcanic field, which has been active for at least 2 million years. It ceased erupting just 10,000 years ago—a geologic blink of an eye. Most of the volcanoes are basalt cinder cones, but there are also large lava domes consisting of rhyolite and dacite. (Smiley, 1958). The field contains more than 600 scoria cones active in the past six million years. Since then, much of the mountain has been removed to create the “Inner Basin.” The missing material may have been removed quickly and explosively by an eruption similar to the 1980 eruption of Mount St. Helens, Washington, or it may … Santorini 1600 BC. Among the most dramatic flows is the Bonito Lava Flow. The San Francisco Volcanic Field lies on the southern margin of the Colorado Plateau near its boundary with the Basin and Range Province (Figure 1). The San Francisco Volcanic Field lies not near the city of the same name but in northern Arizona. service@baynature.org. The Advanced Land Imager on NASA’s Earth Observing-1 satellite captured this natural-color image on April 17, 2010. The volcanic field is also the site of some of the USA's most recent volcanic activity, the formation of Sunset Crater cinder cone around AD 1100. Our expert volcanologists and photographers offer unique travel experiences: polygenetic volcanic field, cinder cones, stratovolcano 2770 m / 9,088 ft, Colors of Iceland: Fire, Earth, Ice and Water, San Francisco Volcanic Field volcano eruptions. Sunset Crater Volcano erupted over 900 years ago, making it the youngest cinder cone in a field … Explosive eruptions: Magma is ripped into pieces as it rises through the volcano, and then erupts onto the surface in lava fragments called pyroclasts. Tanaka et al., 1986). Effusive eruptions: Magma rises to the surface, erupts, and flows out of the volcano as lava. Sunset Crater Volcano, part of the San Francisco Volcanic Field, is an extinct cinder cone. Konocti (Pomo for “Mountain Woman”) is in the Clear Lake volcanic field, which has been active for at least 2 million years. Eruption Styles in the San Francisco Volcanic Field . The San Francisco Volcanic Field is a 4,700 square kilometers (1,800 square miles) area in the southern boundary of the Colorado Plateau. San Francisco Mountain (peak on the left) viewed from Mount Elden to the southeast, near Flagstaff, Arizona. The youngest volcanic features are basaltic cinder cones, tuff rings, spatter cones, and lava flows. Effusive eruptions: Magma rises to the surface, erupts, and flows out of the volcano as lava. This is an attribute of many of the volcanoes of the SFVF. The three youngest fields are the San Francisco, Uinkaret, and Pinacate volcanic fields. Tornado Index, #1341 The former two reside on the Colorado Plateau of northern Arizona; the Pinacate field is situated on the Arizona-Mexico frontier about 40 miles south-southwest of Ajo, Arizona. The San Francisco Mountain volcano near Flagstaff Arizona, some 0.5 Ma younger, is probably a good analog for the appearance of Mount Taylor as late as 0.5 to 1 million years ago. The San Francisco volcanic field is a vast area covering more than 10,000 km22 containing cinder cones, lava fields, lava domes and the majestic (extinct) San Francisco Peaks, the highest of all mountains in Arizona, rising 5,000 feet above the surrounding plateau. But for the most recent local volcano, travel north to the 4,200-foot Mount Konocti near Clear Lake. 28 Self NRC Scenario for an eruption in the San Francisco Peaks or similar volcanic field: Effects on northern Arizona and beyond O 29 Thompson Columbia U. San Francisco Volcanic Field volcano ) - - - - | Quakes (show) all >M3 >M4 >M5 >M6 M7+ / past 24h - past 48h - past week - past 2 weeks / Archive. This volcanic field seems to have formed from a geological hotspot. The most recent eruption, Sunset Crater, occurred approximately 900 years ago and was characterized by a NE-SW trending fissure that produced effusive lava flows, fumaroles and volcanic gasses (Smiley, 1958; Alfano, 2013). Sunset Crater in northern Arizona is one of the youngest volcanoes in the USA. Covering 1,800 square miles (roughly 4,700 square kilometers), the volcanic field consists of volcanoes and lava flows, including SP Crater. The San Francisco volcanic field is a vast area covering more than 10,000 km22 containing cinder cones, lava fields, lava domes and the majestic (extinct) San Francisco Peaks, the highest of all mountains in Arizona, rising 5,000 feet above the surrounding plateau. It erupted only about 1,000 years ago, when the ancestors to the Pueblo lived in the area. The San Francisco Volcanic Field lies not near the city of the same name but in northern Arizona. Please help us keep this unique regional magazine thriving, and support the ecosystem we’ve built around it, by subscribing today. Yup, the San Francisco Peaks are an extinct stratovolcano which last erupted some 200,000 years ago. San Francisco Volcanic Field (329020) in Volcanoes of the World, v. 4.9.2 (10 Dec 2020). The last eruption in the field was the Sunset Crater cinder cone, some 940 years ago; there will be more eruptions in the SF Volcanic Field in the future. A higher volcano index value means a higher chance of being affected. the San Francisco, Springerville, and Uinkaret volcanic fields of the Colorado Plateau and the Sentinel, San Bernardino, San Carlos, and Pinacate volcanic fields of the Basin and Range Province. Sign up today. The ancestors to the surface, erupts, and Pinacate volcanic fields the east flank occurred San! 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