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How do they appropriately measure earthquakes so deep? It had a magnitude of 8.1 on the surface level, however it happened at a depth of 32000 meters! so was it
by singularity2001 9y ago
How do they appropriately measure earthquakes so deep?
It had a magnitude of 8.1 on the surface level, however it happened at a depth of 32000 meters! so was it a magnitude 9 earthquake down there, or does the 8.4 already take into account the depth?
- matt_morgan 9y ago32 Kilometers is not very far in earthquake terms. Machines all over the world can feel small earthquakes no matter where they happen, and this is a very big earthquake.
- sp332 9y agoYou can triangulate the location from many stations, and work backward to determine how strong it must have been at the origin.
- maxerickson 9y agoYes, the reported numbers account for the distance between the seismometer and the epicenter of the earthquake, they are the maximum intensity of the quake.
- JetSpiegel 9y agoMagnitude measures energy released, so it takes into account the distance. For damage done on the surface you have the subjective Mercali scale.