スロー地じ震しん

noun

slow earthquake

A seismological term for a type of earthquake that releases energy over a longer period than ordinary earthquakes, often imperceptible to humans.

• スロー地じ震しんは通つう常じょうの地じ震しん計けいでは検けん出しゅつが難むずかしい。

  Slow earthquakes are difficult to detect with ordinary seismographs.