modified mercalli intensity scale simulator

Hanging objects quivering. www.teachengineering.org/activities/view/cub_natdis_lesson03_activity3, Search curriculum by Common Core standards, Natural Disasters: Earthquakes, Volcanoes, Tornadoes & More. This offers the possibility of transforming readily observed intensity data into widely used engineering ground-motion characteristics and to rapidly assess the severity of ground shaking [1]. The areas of equal intensity, referred to as isoseismals, tend to form irregular bullseye patterns, with the center of the bulls eye, and the highest intensities, experienced at or near the earthquake epicenter. The scale now generally employed in North America is the Mercalli scale, as modified by Harry O. of Commerce, Under development - data is currently in the process of being created. Most of them were generated from the Sagiang Fault Zone of Myanmar, as mentioned, 1) 23rd May 1912 2) 23rd May 1912 3) 8th August 1929 4) 5th May 1930 5) 3rd December 1930 6) 4th December 1930 7) 4th December 1930 8) 21st March 1954 9) 8th October 2006 10) 12th December 2006. Magnitude measures the energy released at the source of the earthquake. In some cases, instrumental data verify this calculation, but not infrequently the true epicentre lies outside the area of greatest intensity. Does the booklet make sense? (ed. catalogs, post-event reconnaissance reports, journal articles, newspapers, internet The San Francisco earthquake of 1906, which measured 8.3 on the Richter Scale. Landslides. Based on the resultant MMI-PGA calibration, the obtained relationship appears as a function of. Rhodes, B.P., Perez, R., Lamjuan, A. and Kosuwan, S. (2004) Kinematics and tectonic implications of the Mae Kuang Fault, northern Thailand. Department of Mineral Resources (2006) Macroseismic investigation in Chiang Mai Province, Northern Thailand. Today, we are going to look at the Mercalli Scale's damage rating and create a booklet to help inform citizens of potential danger. 438483. Modified Mercalli Intensity Scale - YouTube Since that time, the divisions in these scales have been associated with measurable accelerations of the local ground shaking. Cite as: National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Ground cracked noticeably. For further information visit http://pasadena.wr.usgs.gov/shake/. Log in or create an account to manage your custom schedule. 2006-2013 Scientific Research Publishing Inc. All rights reserved. %PDF-1.5 amount of energy released during an earthquake. (Write the words on the board for them to copy.) Figure 3. Underground pipelines completely out of service. 2015-04-22T00:00:00 -NOAA created the National Centers for Environmental Information (NCEI) by merging Avoid buildings, trees, power lines, and signs if you can. X. Intensity ratings map for the M6.0 Napa, California earthquake on It can be labeled the "Mercalli Scale." Centers for Environmental Information, Climate It occurred in the afternoon, lasted for 10 minutes, and caused tsunamis that affected southern Chile, Hawaii, Japan, the Philippines, New Zealand, Australia, and the Aleutian Islands. Thesis, Chulalongkorn University, Bangkok. Intensity depends, however, in a complicated way not only on ground accelerations but also on the periods and other features of seismic waves, the distance of the measuring point from the source, and the local geologic structure. NOAA National Centers for Environmental Information. '", 14. Both of these were generated by the Ranong [9] and Mae Tha [11] Fault Zones, which represent the MMI characteristics in the southern and eastern part of Myanmar, respectively. Alternative scales have been developed in both Japan and Europe for local conditions. Fall of stucco and some masonry walls. (Answer: the damage left by an earthquake) Today we will learn more about this scale. Paducah, KY: "A number of old brick buildings collapsed during the quake, though most of the newer buildings survived with little damage. Le Dain, A.Y., Tapponnier, P. and Molnar, P. (1984) Active faulting and tectonics of Burma and surrounding regions. Little Rock, AR: "Residents of the Holiday Inn noted that the water sloshed out of the swimming pool during the quake. Serious damage to dams, dikes, embankments. on observed effects. It may be helpful to put the scale up on the board and read it aloud with the students. Don't stop under bridges, overpasses, trees, or power lines. WebABBREVIATED MODIFIED MERCALLI INTENSITY SCALE; REFLECTION QUESTIONS; Contributors and Attributions; Magnitude and Intensity measure different characteristics of earthquakes. Figure 1, Table 1, Figure 1. Thus, all values of PGA in each MMI are averaged statistically. ", 23. Earthquake templates. ", 8. May feel like heavy truck passing by. The Mercalli Scale was used earlier than the Richter Scale. Modified Mercalli intensity scale - Wikipedia Underground pipes broken. In case of no shelter, hold on to your head and neck with both arms and hands. Modified Mercalli Scale Intensity - MercalliXII Understand how a community could use the Mercalli Scale. scale composed of 12 increasing levels of intensity based on observed What Should I Do Before, During, and After an Earthquake? 812-855-5809. ", 22. On 23rd May 1912, two earthquakes of a magnitude of Mw 8.0 devastated Myanmar. Soil Dynamics and Earthquake Engineering, 11, 387-402. Louisville, KY: "The Captain's Restaurant reported $3000 damage due to broken china and glassware. Microearthquakes, usually not felt. The Mercalli Scale uses human observation to assess damage from an earthquake, while a <> Teachers Association. From Figure 2, it is revealed that the series of MMIPGA calibration vary in individual MMI range. Ft. Smith, AR: "Drinkers at the Moose Lodge complained of tainted liquor at the lodge bar, after a number of drinkers reported feeling a strong swaying sensation. OFFICE OF RESEARCH It describes the damage left by an earthquake, not the actual force of the earthquake. developed in 1931. The projector calculator finds the optimum viewing distance and throw distance for a specific projection size. Limestone facing stone falling off of the Geology Building killed two students trying to escape from the building. Then, on 3rd - 4th December 1930, two earthquakes of approximately the same magnitude (~Mw 7.3) in Pyu and Yangon, respectively, were reported [8]. Boore, D.M., Joyner, W.B. Several scales of measurement have been developed. In this study, the previously reported isoseismal maps are compiled and used to carefully investigate the macroseismic intensity in terms of the Modified Mercalli Intensity (MMI) scale, based on the engineering ground-motion parameter, as the peak ground acceleration (PGA), inferred from the ground-motion attenuation characteristic of Myanmar. Earth Homepage | UCMP The MSK scale is the most recent, has 12 values that approximate but are not the same the Modified Mercalli values, and is used extensively in Europe.Intensity values can be correlated with other measures of ground motion, such as displacement, velocity and acceleration. The descriptions below are a simplified version of the New Zealand Modified Mercalli Intensity scale. Students learn about the Mercalli Scale for rating earthquakes.copyrightCopyright http://upload.wikimedia.org/wikipedia/commons/c/c7/US_Navy_110320-M-0145H-063_A_large_ferry_boat_rests_inland_amidst_destroyed_houses_after_a_9.0_earthquake_and_subsequent_tsunami_struck_Japan_March.jpg. (Ganse, Robert A., John B. Nelson, 1981). Small objects are displaced or upset. and Yamazaki, F. (2001) A proposal of instrumental seismic intensity scale compatible with MMI evaluated from three-component acceleration records. Black stars are the locations of past earthquakes whereas the ground shaking intensities are illustrated in terms of gradual color of the MMI scale. To this end, based on the published probabilistic seismic hazard map of the Yangon area, central Myanmar ([13], the maps were evaluated by using the strong ground-motion attenuation relationship of Boore et al. The contents of this digital library curriculum were developed under a grant from the Fund for the Improvement of Postsecondary Education (FIPSE), U.S. Department of Education, and National Science Foundation GK-12 grant no. In this activity, students learn about the Richter Scale for measuring earthquakes and make a booklet with drawings that represent each rating of the Richter Scale. A Modified Mercalli Intensity of six is abbreviated as MMI 6. ", 6. This method of obtaining data is not enough for the numerical analysis of seismic hazards and in particular is not sufficient for engineering purposes [3]. Proceedings of the 5th World Conference Earthquake Engineering, Santiago, 13-18 January 1969.
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