Japan Geoscience Union Meeting 2021

Presentation information

[E] Oral

U (Union ) » Union

[U-12] From Hazard to Resilience

Fri. Jun 4, 2021 3:30 PM - 5:00 PM Ch.01 (Zoom Room 01)

convener:Naoshi Hirata(National Research Institute for Earth Science and Disaster Resilience), Keiko Tamura(Risk Management Office, Niigata University), Matt Gerstenberger(GNS Science), Danijel Schorlemmer(GFZ German Research Centre for Geosciences), Chairperson:Naoshi Hirata(National Research Institute for Earth Science and Disaster Resilience), Danijel Schorlemmer(GFZ German Research Centre for Geosciences)

4:30 PM - 4:45 PM

[U12-05] Seismic Motions on different floors by the 2021 February 13th Fukushima-oki Earthquake

*Hiroshi Tsuruoka1, Danijel Schorlemmer3, Naoshi Hirata2, Fumihiko Gunji2 (1.Earthquake Research Institute, Tokyo Univ., 2.NIED, 3.GFZ)

Keywords:IoT Seismometer, Metropolitan area, Hazard

We have developed a very small seismometer based on Raspbberry pie ZERO and IoT Technologies and installed them in various parts of the Tokyo metropolitan area such as Narita International Airport, Kawasaki City, Yachiyo City and the skyscraper at Tokyo Shinjuku-ku. We acquired the data of the earthquake (Mj=7.3) off the coast of Fukushima-Miyagi Prefecture that occurred on the Feb 13th, 2021.

We called this small seismometer as QuakeSaver, and the data acquired by these seismometers is automatically uploaded to the cloud server and archived. In addition, QuakeSaver analyzes values related to shaking such as seismic intensity and SI in real time and sends them to the cloud server in the same way.

We report on the analysis results about Narita Airport. Sensors are installed in the corners of the buildings on the 1st, 2nd, 4th, and 6th floors. The higher the floor, the higher the seismic intensity, and the maximum seismic intensity was 4.86.

In order to grasp the damage caused by the shaking of an earthquake, it is necessary to install many seismometers, and such a small seismometer is considered to be very useful. We will continue to install such small seismometers in the Tokyo metropolitan area.