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An earthquake of magnitude 4.5 occurred in Phitsanulok. By Asst. Prof. Dr. Helmut Josef Durrast
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The earthquake magnitude was quite low, but the magnitude was above a value where people can feel it. Some people felt it and videos from shaking were recorded. But the earthquake magnitude is below a value of significant damage and destruction. The earthquake depth was also not very deep, so that the shaking was more. In summary, the earthquake magnitude was too low to make serious damage.
Thailand and its surrounding seismicity from 1912 to 2007. From: DOI 10.1007/s10518-010-9197-3
From the map of earthquakes, even if the data finished in 2007, you can see a lot of earthquakes in Upper Thailand over almost 100 years, with various magnitudes, but most are not so high. These earthquakes are the consequence of currently moving plates (plate tectonics) with active faults in our area. Active faults means faults with movement that produce earthquakes. Therefore, we will see earthquakes again and again mainly in Upper Thailand, but also in Southern Thailand.
Major tectonic elements in Southeast Asia and Southern China. Arrows show relative directions of motion of crustal blocks during the Late Cenozoic. MPFZ—Mae Ping Fault Zone; NTFZ—Northern Thailand Fault Zone; TPFZ—Three Pagodas Fault Zone; UFZ—Uttaradit Fault Zone. (Courtesy Fenton et al. 2003) From: DOI 10.1007/s10518-010-9197-3
Finally, earthquakes in Thailand and especially in the area around Thailand are normal because of the plate tectonics in the region.
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