USGS Volcanoes Verified account

@USGSVolcanoes

Delivering official updates and info for U.S. volcanoes. email: vhpweb@usgs.gov

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Joined August 2016
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  1. Feb 11

    Cascade volcanoes at background levels of activity this week: . Today is International Day of Women and Girls in Science. CVO thanks its scientists (a few shown in photo) for monitoring active volcanoes & helping communities mitigate risks.

    1 reply 14 retweets 58 likes
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  2. Feb 11

    February 11 is International Day of Women and Girls in Science. Inspire a girl today and she may become a woman in science tomorrow. Consider the impact that's had on the field of science.

    Top half of image: A collage of girls with a white banner at the top with the text, "Inspire a girl today..." Bottom half of image: A collage of women with a white banner above the photos that reads, "...and she may become a woman in science tomorrow!"
    Today is . Learn about some of the women in science & science support at in this pub:
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    28 retweets 83 likes
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  3. Feb 10

    operates microphone-like pressure sensors to "listen" to . While network is designed to detect activity at , , & rift zones, it also captured sound waves from the distant eruption of Hunga Tonga-Hunga Ha’apai. :

    3 replies 20 retweets 67 likes
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  4. Retweeted
    Feb 10

    It's still and Semisopochnoi's ongoing looks great from the CETU webcam looking east across the island. Mount Cerberus' north crater is erupting, Sugarloaf silhouetted beyond. More webcams at: Photo: AVO/USGS, Feb 10, 2022.

    , and
    1 reply 21 retweets 83 likes
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  5. Retweeted
    Feb 8

    These marmots can thank the volcanoes! The mountains around are the cooled insides of ancient volcanoes, and the plateaus to the south are cooled lava flows. This influences climate and vegetation and creates a home for these little guys! NPS

    Two marmots lounge on rocks.
    6 replies 8 retweets 79 likes
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  6. Retweeted
    Feb 9

    It's ! While Utah does not have any active volcanoes, some of the landscape that we know today wouldn’t exist without them. The Black Rock Desert is the youngest volcanic field in Utah, learn more here– Photo by Adam McKean

    15 retweets 99 likes
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  7. Retweeted
    Feb 9

    Fly over Oregon's otherwordly Jordan Craters. Even at a few thousand years old, it looks like “the lava just stopped flowing yesterday." 🌋⏰ 🎥 Mark Unger

    7 replies 32 retweets 164 likes
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  8. Retweeted
    Feb 8

    Happy ! On Umnak Island in the , the curiously twin-cratered Cone C inside Okmok Volcano's caldera. Was it formed in 2 separate eruptions or did the vent shift during 1? Many ?? among the 53 active of Photo: 2010, Dr. J. Larsen- AVO/UAF

    A black volcanic cone with two craters at the top, with deep erosional valleys down the flanks.
    , and
    1 reply 28 retweets 166 likes
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  9. Feb 9

    Volcanoes in Arizona? You bet! The San Francisco Volcanic Field is young - it erupted only 935 years ago & was witnessed by people inhabiting the area. is responsible for monitoring & reporting activity.

    Apollo Grover Historical Photo: B9 - Eugene Cernan (right) and Harrison Schmitt drive Grover; Sunset Crater lava flows visible in background.
    Happy ! Astrogeology Science Center was founded in Flagstaff, AZ because of the abundance of features analogous to extraterrestrial bodies - like the volcanoes of the San Francisco Volcanic Field. Here's an image of astronauts testing a rover at Sunset Crater
    1 reply 6 retweets 65 likes
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  10. Feb 8

    All volcanoes in California were at normal background levels of activity last week. Did you know lava comes in leopard print? This amygdaloidal basalt, with vesicles filled by secondary minerals, is found in the Berkeley Hills volcanic field.

    Close-up photo of a tan rock face mottled with gray and pale green spots. Half a camera lens cap is included for scale.
    7 replies 22 retweets 107 likes
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  11. Feb 7

    Time for a road trip to New Mexico to visit this gorgeous cinder cone.

    Old building and trees in front of Capulin Volcano
    This week is and we’d like to introduce you to the star herself, Capulin Volcano! A cinder cone, Capulin erupted into existence around 60,000 years ago and has been greeting visitors that travel over the plains of northeastern New Mexico ever since. 📷: Tim Keller
    6 replies 8 retweets 82 likes
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  12. Feb 7

    Valley of Ten Thousand Smokes is on everyone's top 10 list of places to visit.

    An ashen landscape with a river cutting cutting through and mountains in the background, one mountain is snow and glacier covered
    It's ! Katmai has long been shaped by volcanic activity. Visited before? You may have seen pumice floating, ash under your feet, or even been privileged to see the Valley of Ten Thousand Smokes. Photo of the Valley w/ the stratovolcano Mount Mageik courtesy of L. Law
    1 reply 7 retweets 67 likes
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  13. Feb 7

    Utah has amazing volcanic landscapes.

    It's ! The most recent volcanic activity in occurred about 600 years ago in the Black Rock Desert (Millard County), leaving intriguing landforms & features including volcanic cones, lava tubes, pressure ridges & craters. Learn more:
    1 reply 12 retweets 106 likes
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  14. Feb 7

    It's . Throughout the week, we will be sharing posts about various volcanoes located in National Parks across the US. And yes, you can visit them!

    It's ! I'd make a volcano pun, but I'd only magma self laugh. We've got ~43 millions years of volcanic history to share! Our volcanic sources are not active, but evidence of their eruptions describe the volcanic events and organisms at the time. Science rocks!
    3 replies 22 retweets 113 likes
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  15. Retweeted
    Feb 6

    It’s ! But wait...where’s the volcano at ? There are no active volcanoes today, but the landscape couldn’t exist without ancient floods of lava that once poured over eastern WA. USGS; NPS

    Molten lava erupts into the air.
    A towering cliff of dark rock.
    1 reply 14 retweets 131 likes
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  16. Feb 7

    Ever think an earthquake in one place is the same as an earthquake in another? It turns out that the style of an earthquake varies depending on its cause. Today's sees what's shaking.

    Spectrogram of a possible long-period (LP) earthquake in Yellowstone that occurred on August 26, 2021, near Norris Geyser Basin. The top panel shows a 30-second seismogram recorded at seismic station YHH. The bottom panel shows the spectrogram with energy concentrated in the 1–3 Hz range and lasting for ~15 seconds.
    3 replies 19 retweets 62 likes
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  17. Feb 4

    video (Feb 1) shows recent activity at the lava lake in Halema‘uma‘u crater. Lava upwelling at the western vent flows into the lake, where bubbling is commonly present. In eastern portion of crater, a steep spatter cone has produced vigorous spattering, small lava flows.

    3 replies 24 retweets 90 likes
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  18. Feb 4

    Video compilation of the lava lake contains footage taken from the air and ground. Observations of the eruption, which was active on Jan 27, show spattering in the active lava lake in the western portion of Halema‘uma‘u as well as gas-jetting sounds from a small spatter cone.

    1 reply 8 retweets 45 likes
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  19. Feb 4

    ’s summit glow comes and goes these days, as lava lake activity pauses and rebounds. scientists have been tracking this pattern of behavior over the last 2+ months (DI cycles) and share their findings in this week's :

    5 replies 19 retweets 96 likes
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  20. Feb 4

    Cascade volcanoes at normal background levels of activity this week: . present showing subtle uplift (~1 inch) west of South Sister. Interesting story! More here: .

    4 replies 17 retweets 76 likes
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