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Atmospheric Storm Anomalies Prior to Major Earthquakes in the Japan Region

Author

Listed:
  • Friedemann T. Freund

    (GeoCosmo Science and Research Center, NASA Ames Research Park, Code SCR, Moffett Field, Mountain View, CA 94035-1000, USA)

  • Mohammad Reza Mansouri Daneshvar

    (Department of Geography and Natural Hazards, Research Institute of Shakhes Pajouh, Isfahan 81589-49191, Iran)

  • Majid Ebrahimi

    (Department of Physical Geography, Hakim Sabzevari University, Sabzevar 96179-76487, Iran)

Abstract

Connections between atmospheric perturbations, e.g., thunderstorm activity, and major earthquakes are investigated along with the lithosphere–atmosphere coupling mechanism, concerning the earthquake prediction models. The present research attempts to recognize a possible link between atmospheric processes (rainfall, storms) and subsequent earthquakes (M > 6) across a wide area around Japan. Earthquake data and upper-atmosphere sounding data related to the Severe Weather Threat (SWEAT) index and Skew-T plots were obtained from two Japanese radiosonde stations, Hachijojima and Kagoshima. Using the cross-correlation function (CCF) method, it is shown that SWEAT conditions existed within 30 days before six major earthquakes in 2017 in the Japan region. The Seismo-Climatic Index (SCI) reached a mean of 2.00, 7–8, and 13–14 days before these earthquakes, indicating thunderstorms and extreme weather conditions, further supported by Skew-T plots. Low-pressure systems, deviating from the mean by as much as −50 to −250 m, and hot spots of increased precipitation ranging from ~80 to ~140 mm rainfall within 24 h were observed to be geographically associated with these earthquake events. The anomalous atmospheric conditions can be understood based on increased air ionization at the ground-to-air interface due to the influx of positive-hole charge carriers that are stress-activated deep in the lithosphere and spread through the rock column. When the positive electronic charge carriers are accumulated at the lithosphere, preferentially at topographic highs, some steep electric fields are observed capable of field-ionizing the air. The airborne ions then act as condensation nuclei for atmospheric moisture, thermal updrafts, cloud formation, and a statistically significant precipitation increase. This research was conducted based on some experimental indicators in a very important seismological region to examine the successfulness of the proposed mechanism and the given indicators as the possible proxies of pre-earthquake precursors. Hence, the main practical implication of the research can highlight a sustainable way for improving the managerial tools in the field of earthquake prediction.

Suggested Citation

  • Friedemann T. Freund & Mohammad Reza Mansouri Daneshvar & Majid Ebrahimi, 2022. "Atmospheric Storm Anomalies Prior to Major Earthquakes in the Japan Region," Sustainability, MDPI, vol. 14(16), pages 1-19, August.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:16:p:10241-:d:890818
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    References listed on IDEAS

    as
    1. Jamie I. Farquharson & Falk Amelung, 2020. "Extreme rainfall triggered the 2018 rift eruption at Kīlauea Volcano," Nature, Nature, vol. 580(7804), pages 491-495, April.
    2. Jamie I. Farquharson & Falk Amelung, 2020. "Author Correction: Extreme rainfall triggered the 2018 rift eruption at Kīlauea Volcano," Nature, Nature, vol. 582(7811), pages 3-3, June.
    3. Mohammad Mansouri Daneshvar & Mahmood Khosravi & Taghi Tavousi, 2014. "Seismic triggering of atmospheric variables prior to the major earthquakes in the Middle East within a 12-year time-period of 2002–2013," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 74(3), pages 1539-1553, December.
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