When did Clear Lake volcano erupt?

The Clear Lake Volcanics erupted during four periods of time beginning at about 2 Ma. There is a general decrease in age northward from 2 Ma in the south to about 10,000 years in the north.

When was the last time Clear Lake Volcanic Field erupted?

about 11,000 years ago

The last eruption being about 11,000 years ago.

Will the Clear Lake volcano erupt?

The complex eruptive history over the past 2 million years and the 10,000-year age of the youngest eruption indicate that the Clear Lake magmatic system is not extinct and that future eruptions are likely.

How Old Is Clear Lake volcano?

The latest volcanic activity happened about 10,000 years ago and formed maars and cinder cones along the shores of Clear Lake, the larges natural freshwater lake in California.

Is there a volcano in Clear Lake?

Mount Konocti, a composite dacitic lava dome on the south shore of Clear Lake, is the largest volcanic feature.

What would happen if Clear Lake volcano erupted?

These eruptions would be phreatomagmatic and would pose ash-fall and wave hazards to the lakeshore and ash-fall hazards to areas within a few kilometers of the vent. Eruptions away from the lake would produce silicic domes, cinder cones and flows and would be hazardous within a few kilometers of the vents.

Is Clear Lake Volcanic Field active?

The new U.S. Geological Survey report, which updates the first assessment released in 2005, ranks the 161 young, active volcanoes within the United State’s borders. Sitting on the western shore of Clear Lake, the Clear Lake Volcanic Field’s most notable feature is Mount Konocti. It was ranked at No.

Is Long Valley caldera active?

Long Valley Caldera and the Mono-Inyo Craters chain form a large volcanic complex in eastern California that has had persistent earthquake activity and ground uplift in recent decades. Volcanoes have been active in the area for millions of years, and future eruptions are certain to occur.

How did Clear Lake get its name?

Clear Lake was named by settlers in the late 1800s because of the astonishingly clean air found in the region. And the air remains clean to this day, with the California Air Resources Board certifying Lake County as having the cleanest air in California for the last 23 years.

Is Mt Konocti an active volcano?

A dormant volcano, Mount Konocti is said by geologists to be a composite cone of lava that was built up over millions of years of gentle eruptions. The volcano became dormant approximately 10,000 years ago, making it the youngest mountain in all of California’s coastal ranges.

Is Cobb mountain a volcano?

Volcanic rocks in the Geysers – Cobb Mountain area are part of the late-Pliocene-Holocene Clear Lake volcanic field that occurs within the eastern Coast Range of northern California, east of the San Andreas fault and southwest of the active Cascade magmatic arc (Fig. 1; Hearn et al., 1981, 1995).

Where can I find Lake County Diamonds?

Our Lake County museums and rock shops have some amazingly large Lake County diamond specimens. They are commonly found in Lake County in the Hidden Valley Lake and Perini Hill areas. (Obtain permission prior to hunting, however, as these are private properties, for the most part.)

Why are there volcanoes in California?

The Gorda Plate is subducting under the North American Plate north of Cape Mendocino and is the cause of the state’s two active volcanoes, Mt Shasta and Mt. Lassen. Immediately north, the Juan de Fuca Plate is subducting under North America and is responsible for the Cascade Range Volcanoes.

Is Mount Shasta still an active volcano?

Mt. Shasta is an active volcano that has erupted at least once per 800 years for the past 10,000 years, with an increased eruption frequency of about once per 250 years over the past 750 years.

Is Mt Diablo a volcano?

Mount Diablo itself is not a volcano, but was formed in the past couple million years by the folding and faulting of the earth’s crust.

When was the last volcanic eruption California?

California last experienced a volcanic eruption on May 22, 1915, when Mount Lassen sent pulverizing streams of volcanic debris down its slopes.

When did Yellowstone last erupt?

about 70,000 years ago

When did the Yellowstone volcano last erupt? Approximately 174,000 years ago, creating what is now the West Thumb of Yellowstone Lake. There have been more than 60 smaller eruptions since then and the last of the 60–80 post-caldera lava flows was about 70,000 years ago.

Is there a volcano in LA?

There are no volcanoes in Los Angeles. The closest volcanic activity is the Lavic volcanic field and Coso volcanic field.

Is there a supervolcano in California?

The Long Valley Caldera in East California is a massive depression sitting next door to the Mammoth Mountain. It is known as one of the largest calderas– an immense, cauldron-like hollowed mass that forms after volcanic eruptions on the planet.

Is Long Valley Caldera bigger than Yellowstone?

A GIANT supervolcano hidden beneath California could be an equal if not greater threat to the US than Yellowstone volcano, scientists have revealed. The 20-mile long Long Valley Caldera in eastern California is one of the world’s largest volcanic calderas.

What are the 3 super volcanoes in the US?

The United States is home to three active supervolcanoes, the USGS has determined: The famous Yellowstone, Long Valley and the Valles Caldera in New Mexico.

Is Mt St Helens a supervolcano?

Mt. Saint Helens is not even the most likely volcano in the Cascades to produce a “supervolcanic” eruption. It has been very active over the last 10,000 years, but most tend to be small, bleeding out material frequently over this period.

Does Yellowstone have a supervolcano?

The Yellowstone Caldera, sometimes referred to as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States.

What is the largest supervolcano on Earth?

1 – La Garita Caldera

Garita Caldera is a large supervolcanic caldera in the San Juan volcanic field in the San Juan Mountains near the town of Creede in southwestern Colorado, United States. The eruption that created the La Garita Caldera is among the largest known volcanic eruptions in Earth’s history.