Geophysics tools for volcano monitoring
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Geophysics tools for volcano monitoring


Hi I’m volcanologist Dr. Janine Krippner and this is my guest Hi I’m Dr. Wendy Bohon, I’m an earthquake geologist with the Incorporated Research Institutions for Seismology And she runs an awesome Twitter account with a lot of really neat educational resources to use and you have some neat demonstrations on geophysical tools to monitor volcanoes Yes, so people think geophysics is boring and not very creative, but in reality we’re trying to understand things that you can’t see, that are deep inside the Earth and so we have to be really creative and use special tools in order to do that One of the types of tools we can use is a seismometer that measures earthquakes, and so if we have seismometers around a volcano when magma and superheated liquids and also gases start to move up into the volcano they break rocks, and so the seismometers help us to know when magma is moving into a volcano, and therefore when it might become active. We also have tools called tiltmeters This is like a tiltmeter you have in your house, it’s a carpenters level see that little bubble in the middle? When it starts to tilt and you see and the bubble move, you know that the instrument is tilting, so if we see a tiltmeter on the side of a volcano moving, we know that something is changing underneath the volcano and we may need to take a look also GPS instruments, just like the ones you have in your car, if we put those around the outside of a volcano, say we have one here and one here, and suddenly they start to move apart, we go ahah! Something’s happening! That could be the inflation of the volcano due to magma moving underneath the volcano So that tells us we need to pay attention and start looking more closely. That is so cool, thank you so much, there is so much incredible science that goes into understanding these huge volcanic systems. Thank you for joining me for this volcanic moment. Thanks for having me.

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