The Modified Mercalli Intensity Scale | U.S. Geological Survey
6.3 Measuring Earthquakes – Environmental Geology
Provincial Government of South Cotabato - FYI | PHIVOLCS Earthquake Intensity Scale (PEIS) 🔴 Intensity Scale I Shaking: Scarcely Perceptible Perceptible to people under favorable circumstances. Delicately balanced objects are disturbed slightly.