Understanding Earthquake Magnitude
Earthquake magnitude is a logarithmic measure of earthquake size. An increase of 1.0 in magnitude represents roughly a 32-fold increase in released energy.
Magnitude Impact Scale
- M 3.0 - 3.9：Often felt by people indoors; hanging objects may swing, but no damage.
- M 4.0 - 4.9：Noticeable shaking of indoor items, rattling noises, minor wall cracks possible.
- M 5.0 - 5.9：Can cause moderate damage to poorly built structures, heavy furniture may fall.
- M 6.0 - 6.9：Strong earthquake. Can cause severe damage in populated areas up to tens of miles across.
- M 7.0+：Major earthquake. Causes serious damage over large areas and can trigger massive tsunamis.
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This dashboard connects directly to the open APIs provided by the U.S. Geological Survey (USGS), one of the most authoritative scientific agencies worldwide for seismic tracking.
