The 1992 Nicaragua earthquake: a slow tsunami earthquake associated with subducted sediments

  title={The 1992 Nicaragua earthquake: a slow tsunami earthquake associated with subducted sediments},
  author={Hiroo Kanamori and Masayuki Kikuchi},
THE 1992 Nicaragua earthquake was a ‘tsunami earthquake‘; that is, it generated tsunamis1 disproportionately large for its surface-wave magnitude, Ms. The moment magnitude, Mw, determined from long-period (∼250-s) surface waves2, was 7.6, significantly larger than the 20-s Ms of 7; this Ms–Mw disparity is also characteristic of tsunami earthquakes3,4. The Nicaragua earthquake is the first tsunami earthquake to be captured by modern broadband seismic networks, allowing us to present here… 
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