지진 규모 척도
리히터 유사 규모 척도는 지진 에너지 방출을 측정합니다. 한 단계 증가할 때마다 약 31.6배 더 많은 에너지를 나타냅니다.
M1
Micro
Micro earthquakes, not felt by humans.
유감 여부: Not felt. Detected only by seismographs.
M2
Minor
Minor earthquakes. Felt by few people.
유감 여부: Felt by people at rest, on upper floors of tall buildings.
M3
Minor
Often felt, but rarely causes damage.
유감 여부: Felt by many indoors; hanging objects swing.
M4
Light
Noticeable shaking of indoor objects. Rarely causes significant damage.
유감 여부: Felt by most people; dishes rattle.
피해: Light
M5
Moderate
Can cause major damage to poorly constructed buildings.
유감 여부: Causes damage to poorly built structures. Felt by everyone.
피해: Moderate to significant
M6
Strong
Destructive in areas up to 160km from epicenter.
유감 여부: Destructive to a moderate radius.
피해: Moderate to severe
M7
Major
Causes serious damage over large areas.
유감 여부: Can cause serious damage over wider areas.
피해: Severe
M8
Great
Can cause severe damage in areas several hundred km wide.
유감 여부: Major damage to structures; felt at extreme distances.
피해: Severe over large areas
M9
Extreme
Devastating over massive areas. Rare once-per-decade events.
유감 여부: Total destruction near epicenter; tsunamis generated.
피해: Catastrophic