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Volcano Watch — The pressure is on, within Kīlauea and for volcanologists to foretell what’s next
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Volcano Watch — The pressure is on, within Kīlauea and for volcanologists to foretell what’s next

Volcano Watch  is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and affiliates. This week's article is being issued on Friday due to the holiday on Thursday.  Episodic eruptions have occurred before on Kīlauea at the start of the 1983 Puʻuʻōʻō and the 1969 Maunaulu eruptions (44 and 12 episodes each) on the middle East Rift Zone, and during the 1959 Kīlauea Iki summit eruption (17 episodes). While the recent Kīlauea summit eruption is currently paused, persistent night glow from the vent and continued strong degassing indicate molten magma is probably within 150–300
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Pilot Insights – What’s Harder? Flying in Class B Airspace or Taxiing at a Complex Airport?

For many of us, landing at an airport in Class C or Class B airspace can be a challenge.  For some pilots, talking to radar controllers seems intimidating.  But, most pilots who fly into towered airports and who use flight-following on a regular basis find that the talking part does not seem so bad.  In fact, most of the students that I take into Class B airspace find that it’s no big deal.  It does require being attentive to the radio and listening for instructions regarding headings and altitudes, but these are not much different than calls we receive when
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Pilot Insights – It’s just a little weather – what’s the big deal?

There is a big misconception about the complexities of flying in clouds.  There are lots of YouTube videos and flying magazine articles about flights into clouds that result in fatalities.  Among them, you’ll find one that says: “I don’t understand how anyone could make that mistake.  All you have to do is look at that artificial horizon thing to figure out whether your wings are level or not.” Or, perhaps you are a low-time Private Pilot.  You received three hours of instrument training with a hood of some type, and you did pretty well.  So, what’s the big deal?  
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What’s normal for a volcano? How CalVO scientists decide when to raise an alarm (or not)
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What’s normal for a volcano? How CalVO scientists decide when to raise an alarm (or not)

In this spectrogram from November 30, 2024, at Mammoth Mountain, earthquakes in a swarm appear as bright blips of color, arriving rapid-fire and very close in time at nearby stations. Every day, CalVO duty scientists check the number, intensity, and character of earthquakes happening at our volcanoes. It's actually quite common for an active volcano - meaning one that has eruptible magma somewhere in its plumbing - to experience small quakes and shakes. There's always something going on, whether it's magma gurgling, gases and fluids flowing through a hydrothermal system, or the bulk of the volcano settling and shifting. The
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