Modified Mercalli intensity scale
E2245
The Modified Mercalli intensity scale is a seismic scale that qualitatively measures the observed effects and damage of an earthquake on people, structures, and the Earth's surface.
Aliases (1)
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
earthquake intensity scale
→
seismic intensity scale → |
| appliesTo |
Earth's surface
→
people → structures → |
| basedOn |
observed shaking
→
reported human perception → structural damage → |
| category |
Earthquake scales
→
Seismology → |
| characterizes |
local shaking severity
→
|
| dependsOn |
building vulnerability
→
distance from epicenter → local ground conditions → |
| developedFrom |
Mercalli intensity scale
→
|
| differentFrom |
Richter magnitude scale
→
moment magnitude scale → |
| doesNotMeasure |
total energy released by an earthquake
→
|
| hasLevelDescription |
I: Not felt
→
II: Weak → III: Weak to light → IV: Light → IX: Violent → V: Moderate → VI: Strong → VII: Very strong → VIII: Severe → X: Extreme → XI: Extreme to catastrophic → XII: Catastrophic → |
| hasMaximumValue |
XII
→
|
| hasMinimumValue |
I
→
|
| hasNumberOfLevels |
12
→
|
| measurementType |
qualitative
→
|
| measures |
earthquake damage
→
earthquake intensity → observed effects of earthquakes → |
| namedAfter |
Giuseppe Mercalli
→
|
| usedBy |
United States Geological Survey
→
emergency managers → engineers → planners → |
| usedFor |
describing earthquake effects at specific locations
→
historical earthquake analysis → mapping earthquake intensity distribution → post-earthquake damage assessment → |
| usedIn |
earthquake engineering
→
seismology → |
| usesRomanNumerals |
true
→
|
Referenced by (10)
| Subject (surface form when different) | Predicate |
|---|---|
|
1906 San Francisco earthquake
→
1986 San Salvador earthquake → 1992 Cape Mendocino earthquakes → |
intensityScale |
|
Giuseppe Mercalli
("Mercalli intensity scale")
→
Giuseppe Mercalli ("Mercalli intensity scale") → |
knownFor |
|
Richter magnitude scale
("Mercalli intensity scale")
→
|
comparedWith |
|
Giuseppe Mercalli
("Mercalli intensity scale")
→
|
developed |
|
Modified Mercalli intensity scale
("Mercalli intensity scale")
→
|
developedFrom |
|
Mercalli
("Mercalli intensity scale")
→
|
hasNotableAssociation |
|
Giuseppe Mercalli
("Mercalli intensity scale")
→
|
notableWork |