Modified Mercalli Intensity Scale 6
Modified Mercalli Intensity Scale 6 : Jaffe, Buffer, and Thurow 1981. Intensity Detectability/Level Impact (1) Detected only by sensitive instruments (2) Felt by a few persons at rest, especially on upper floors (3) Felt noticeably indoors, but not always recognized as a quake (4) Felt indoors by many, outdoors by a few (5) Felt by most people, damage to glass and plaster (6) Felt by all, many frightened and run outdoors, damage small (7) Everybody runs outdoors, damage to buildings varies (8) Panel walls thrown out of frames, fall of walls and chimneys (9) Buildings shifted off foundations, cracked, thrown out of plumb (10) Most masonry and framed structures destroyed, ground cracked (11) New structures still standing, bridges destroyed, ground fissures (12) Damage total, waves seen on ground surface
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