Cascade Range volcanoes at normal background levels of activity this week: usgs.gov/programs/VHP/v…. #CVO & Landslide Hazards Program scientists team up to conduct experiments at #USGS debris-flow flume near Blue River, OR. Timelapse shows crew filling hopper, releasing sediment.

This summer, #HVO & collaborators will deploy seismic nodes at #Kilauea and #MaunaLoa . These pint-sized sensors will help us understand more about where and how much magma is being stored, and how it connects to the surface. #VolcanoWatch
usgs.gov/observatories/…

All volcanoes in California were at normal levels of activity last week. usgs.gov/programs/VHP/v… How do you move 10 tons of Sierran granite? With a huge crane...and very carefully. This week some special rocks made their way from Menlo Park to the new USGS Moffett Field campus.

There are a number of ways to determine the age of a rock -- a field called geochronolgy. Today's #Yellowstone #CalderaChronicles hits the dating scene!

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Cascade Range volcanoes at normal background levels of activity this week: ow.ly/U6px50R9Ko5. Small earthquakes detected at Mount Baker, Mount St. Helens. Close-cropped image shows 1980-86 & 2004-08 lava domes within crater of #MountStHelens (courtesy of Saisha Brody, WWU).

#Spurr GREEN/NORMAL
April 4, 2024
Conditions at Mount Spurr volcano have improved & AVO is again receiving data from monitoring stations and a remote webcam at the volcano. Data are now sufficient to return the Aviation Color Code and Volcano Alert Level to GREEN/NORMAL. (1/2)

With over 200 instruments to maintain across the Island of Hawaii, #HVO field engineers are adept at troubleshooting & problem-solving. Find out what sucks, when the team takes on a tiltmeter. #VolcanoWatch
usgs.gov/observatories/…

All volcanoes in California were at normal background levels of activity last week. usgs.gov/programs/VHP/v… This week, we explore how scientists have tried to take the temperature of the Long Valley Caldera: usgs.gov/observatories/…

#YELLOWSTONE VOLCANO OBSERVATORY
Monthly update
April 1, 2024, 12:16 PM MDT

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MARCH SUMMARY:
- background levels of activity
- 96 located earthquakes (max=M2.7)
- subsidence of Yellowstone caldera
- no eruptions of Steamboat Geyser

Is a wrecked ship really rising out of the muck in Yellowstone Lake due to uplift of the caldera, or is that just an April Fool? We have the answer in this month's #Yellowstone Volcano Observatory update:

youtube.com/watch?v=q9XwJB…

Yellowstone National Park

Check out this video - a light-hearted glimpse into how an AVO scientist begins the day.

Mitigating the effects of the 1959 Madison Slide required a complex response that stabilized what could have been a secondary disaster of a flood following the Hebgen Lake earthquake. #Yellowstone #CaldersChronicles isn't fooling around today.

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Cascade volcanoes at normal, background levels of activity this week: usgs.gov/programs/VHP/v…. Earthquakes detected Baker, Rainier, St. Helens, Hood during the past week. All monitoring data are consistent with background activity levels.

Neither snow, nor rain, nor heat, nor gloom of night shall keep a volcano from erupting. But in remote areas, how do scientists know when an eruption started? They listen. Acoustic sensors used to determine precise start time for 2022 #MaunaLoa eruption. usgs.gov/observatories/…

#HVO field teams conducting a #GPS survey of Hualālai volcano. Survey typically conducted every 3 yrs to determine if there have been any subtle changes in the patterns of ground deformation. Data augments permanent, continuously recording instruments in HVO’s monitoring network.

#AtkaVolcanicComplex YELLOW/ADVISORY
A small, short-lived explosion was detected at the Atka volcanic complex this evening at 19:36 AKDT March 27 (03:36 UTC March 28)
USGS Volcanoes🌋 Alaska DGGS UAF Geophysical Institute
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#HVO and collaborators conduct an annual gravity survey in Kaluapele ( #Kilauea 's summit caldera). Gravity can detect changes in the magma reservoir, such as magma filling or draining void spaces. Data will be processed soon. See more field photos at: usgs.gov/observatories/…

#Kilauea has been in a state of near-constant eruption. Tricia Nadeau & Ashton Flinders, volcanologists at the #USGS Hawaiian Volcano Observatory, talk about the volcano and how they search for clues to help them understand what might happen next. youtu.be/nBcxx84AHSk?t=4

She does chemistry, math, and is a drone pilot! Tag along as Tricia Nadeau, #HVO #volcanologist , shows you how she collects gases at #Kilauea & explains how these data help #HVO understand what's going so they can provide timely alerts to the community. youtu.be/bltcpN34794

All volcanoes in California were at normal background levels of activity last week. usgs.gov/programs/VHP/v… The Clear Lake Volcanic Field's geology, topography, & microclimates make it a fascinating wine-growing area! USGS photo by Mike Mitchell, taken from N of Clear Lake Oaks.