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May 8, 2024 — Kīlauea gravity survey

Detailed Description

Gravity measurements detect subsurface mass change—for example, magma accumulation or removal beneath the surface. In this way, gravity is a way of detecting changes in the magma reservoir that might otherwise be hidden. This photo shows two gravimeters used one-at-a-time to take measurements. USGS photo by A. Ellis.

Sources/Usage

Public Domain.

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