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  1. 2 days ago · Moderate earthquakes are measured between 5 and 5.9 on the Richter Scale and as a VI on the Mercalli intensity scale. These earthquakes are felt by people both inside and outside of buildings. They can potentially cause damage, particularly to weak or poorly built infrastructure. Moderate earthquakes occur approximately 1,000 times a year.

  2. 4 days ago · Peak Particle Velocity (PPV): A Measure of Ground Motion Intensity. Peak Particle Velocity (PPV) is a fundamental parameter used to quantify the intensity of ground motion during an earthquake or other sources of vibration. It represents the maximum velocity attained by a particle in the ground as a result of seismic waves passing through it.

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  4. 3 days ago · For comparison, the Modified Mercalli Intensity (MMI) Scale (Wood and Neumann 1931), widely adopted in European countries and the United States, is also used qualitatively to categorize shaking due to earthquakes. The MMI shows twelve scales of shaking intensity with graphical pictures and brief qualitative descriptions of the effects on humans.

  5. 3 days ago · is a Philippine national institution dedicated to provide information on the activities of volcanoes, earthquakes, and tsunamis, as well as other specialized information and services primarily for the protection of life and property and in support of economic, productivity, and sustainable development.

  6. www.phivolcs.dost.gov.ph › about-us › about-phivolcsAbout PHIVOLCS

    1 day ago · This we do through the development and application of technologies for the monitoring and accurate prediction of, and determination of areas prone to, volcanic eruptions, earthquakes, tsunamis and other related hazards, and gender-responsive capacity enhancement for comprehensive disaster risk reduction. Mandates

  7. 5 days ago · The most recent earthquake, at 11.56pm (local time), caused no personal or material damage and was felt with a maximum intensity of IV/V (modified Mercalli scale) in the parishes of Santa Luzia, Ribeirinha, Agualva, Fontinhas, Lajes, Quatro Ribeiras, São Brás and Vila Nova.

  8. 3 days ago · While the intensity information they contain is exactly the same as that in the other maps, they are packaged in a way that makes them more suitable for broadcast to low-resolution devices, such as TV monitors: roads and borders are thicker, fonts are larger, and the title and intensity scale are simplified. Decorated

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