[DOC] [TLE] Modified Mercalli Intensity scale - Wikipedia [PAR] The Mercalli intensity scale is a seismic scale used for measuring the intensity of 
an earthquake .... These values can be best displayed using a contoured map of 
equal intensity, known as ... Wood, H. O.; Neumann, F. (1931), "Modified Mercalli 
intensity scale of 1931" (PDF), Bulletin of the Seismological Society of America,... [DOC] [TLE] The Modified Mercalli Intensity Scale [PAR] The intensity scale consists of a series of certain key responses such as ... It was 
developed in 1931 by the American seismologists Harry Wood and Frank ... 
measure of severity to the nonscientist than the magnitude because intensity 
refers ... II, Weak, Felt only by a few persons at rest,especially on upper floors of 
buildings. [DOC] [TLE] The Severity of an Earthquake - USGS Publications Warehouse [PAR] Jan 11, 2013 ... Intensity is based on the observed effects of ground shaking on people ... San 
Fernando, California, 1971. ... in magnitude represents a tenfold increase in 
measured amplitude; ... in the United States is the Modified Mercalli (MM) 
Intensity Scale. It was developed in 1931 by the American seismologists Harry... [DOC] [TLE] Introduction to the Earthquake Intensity Database | NCEI [PAR] Intensities are evaluated using the Modified Mercalli Intensity Scale of 1931, 
which ... the names of cities experiencing the earthquakes and the intensities at 
these cities were not ... On October 30, 1983, the number of time zones in Alaska 
was reduced from four to two, which ... The magnitude is a measure of seismic 
energy. [DOC] [TLE] MODIFIED MERCALLI INTENSITY SCALE OF 1931 The formation of ... [PAR] MODIFIED MERCALLI INTENSITY SCALE OF 1931 ... The formation of a 
satisfactory earthquake intensity scale has long ... Most serious, how 2 ... an 
adequate measure of intensity. ... BULLETIN OF THE SEISMOLOGICAL 
SOCIETY OF AMERICA ... Byerly at the University of California at Berkeley, and 
to several others. [DOC] [TLE] EARTH SCIENCE ACTIVITY #5 The Mercalli Scale - ShakeOut [PAR] Developed for the ShakeOut by the Southern California Earthquake Center (www
.scec.org). 1. EARTH ... intensity is a measurement of ground shaking based on 
damage to structures and ... the Modified Mercalli Scale of Intensity to see where 
it might have originated from. 4. ... In 1931, two Americans, H.O. Wood, and Frank
. [DOC] [TLE] How Earthquakes Are Measured - California Department of ... [PAR] recorded, and measured by instruments called seismographs. These devices 
may amplify ground motions beneath the ... expressed in two ways: magnitude 
and intensity. The magnitude is a measure that depends on the .... Mercalli 
intensity scale was modified in 1931 by American seismologists Harry O. Wood 
and. [DOC] [TLE] EQ Country Background Info-EQFAQ [PAR] When an EQ occurs on one of these faults, the rock on one side of the fault slips 
with ... In California there are 2 plates the Pacific Plate and the North American 
Plate. .... List of 1-12 levels of the Modified Mercalli Intensity Scale of 1931 (
Abridged; Wood ... Q: What 3 factors primarily determine what you feel in an 
earthquake? [DOC] [TLE] GORDA BASIN EARTHQUAKE, NORTHWESTERN CALIFORNIA [PAR] Movement within these plates is the cause of the November 8, 1980 tremor. ... As 
the Gorda plate is subducted, friction with the overlying North American plate ... is 
usually measured regionally with the Modified Mercalli Intensity Scale (table 2). ... 
Table 2. Modified Mercalli Intensity Scale of 1931. The first scale to reflect... [DOC] [TLE] Measuring Earthquakes - Cochise College [PAR] Seismologists use two main devices to measure an earthquake: a ... devices, the 
Richter Magnitude Scale, the Modified Mercalli Intensity Scale, and the Moment-
Magnitude Scale. ... Because of these earthquakes, more mechanical devices 
were created ... between earthquakes with a low focus point in southern 
California . [DOC] [TLE] Earthquakes - John A. Martin & Associates [PAR] In most years more earthquakes are felt in California than any other state in ... 
The well known San Andreas fault is the common boundary between these two 
plates. ... The intensity as expressed by the Modified Mercalli intensity scale

Question: In 1931 2 Americans modified the Mercalli scale to measure the intensity of these in California
Answer: earthquakes