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A HISTORICAL VOLCANO CHALLENGE · 3 MIN

Could you have seen Mauna Loa’s 2022 eruption coming?

Step into the timeline as it unfolded. Read each observation, decide what it supports, then reveal what happened next.

One real eruption. No crystal ball. This retrospective uses published USGS observations. It is not a live forecast, safety tool, or reliable way to predict another eruption.
Mauna Loa’s 2022 eruption, shown as a changing conceptual profileAn illustrative volcano profile highlights the summit, Northeast Rift Zone, and lava movement as the historical case progresses. This is not a geographic map or forecast.FIELD RECONSTRUCTION / MAUNA LOA / 2022RESTLESS SUMMITSADDLE ROAD CORRIDORSUMMIT CALDERANORTHEAST RIFTSEISMIC SIGNALCONCEPTUAL PROFILE · NOT TO SCALE · NOT A MAP
The illustration updates as the historical record unfolds.Positions are illustrative, not geographically precise.
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SEPTEMBER 2022OBSERVATION ADDED TO THE RECORD

Earthquakes increased; GPS and tilt showed summit inflation.

What could you reasonably conclude from these observations?