BMKG Records 115 Earthquakes in North Sumatra, Aceh in Second Week of May



Petir Garda Bhwana

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  • Earthquake illustration.

    Earthquake illustration.

    TEMPO.CO, Jakarta - The Regional Earthquake Center (PGR) I at the Meteorology, Climatology and Geophysics Agency (BMKG) Office in Medan recorded a total of 115 earthquakes in the provinces of North Sumatra and Aceh in the past week from May 7 to 14, 2021.

    Based on  their depth, the expert and analysis staff of the Regional Earthquake Center (PGR) I Endah Puspita Sari said on Sunday that  107 of the earthquakes  were shallow earthquakes and eight were intermediate earthquakes.

    "Most  of the earthquakes, or 103 earthquakes,  occurred on land, while 12 others occurred at sea. Nearly 112 of  the earthquakes that occurred in the second week  had a magnitude of below 4,  while the rest had a magnitude of 4," she said.

    Meanwhile, researcher at the Regional Earthquake Center (PGR) 1 Marzuki Sinambela said only two of the 115 earthquakes were felt by the people, including those in Sinabang-Aceh at level II-III MMI on May 10, 2021 at 20:44:33 UTC or on May 11 at 03:44:33 local time, and in Samosir-North Sumatra at level III MMI on May 11, 2021 at 07:15:30 local time.

    No casualty or material damage  was reported in the earthquakes.

    Based on earthquake sources, most of the earthquakes, or 71 earthquakes in the second week of May 2021 were caused by seismic activity around Samosir. Meanwhile, in the subduction area, there were 15 earthquakes, followed by other faults in a smaller number.

    Also Read: Another Strong Earthquake Rocks Mentawai