Earth’s magnetic field surrounds us every second of the day, everywhere on the planet. Anyone who has picked up a pocket compass and seen the magnetic needle quickly align itself has seen the action of this ever-present invisible field. But can we harness the magnetic field to forecast volcanic activity? Emerging technology in the field of “quantum” science may aid us in doing so.
Measurements of gravity can be used to determine how mass is distributed beneath a volcano. At Kīlauea, the Hawaiian Volcano Observatory performs routine microgravity surveys to monitor volcanic activity and to determine changes in gravity.
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June 8 was World Oceans Day, a day to appreciate the huge body of saltwater that covers about 71% of the Earth’s surface. Sometimes it’s easy to forget that our volcanic island is surrounded by oceans and one of the most distant places from continents on Earth. The ocean floor remains one of the most poorly understood places on our planet