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An earthquake registering 7.7 Mw off the coast of Nicaragua became the first tsunami earthquake to be captured on modern broadband seismic networks.
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1992 Nicaragua earthquake
Earthquake and tsunami off the west coast of Nicaragua
The 1992 Nicaragua earthquake occurred off the coast of Nicaragua at 6:16 p.m. on 1 September. Some damage was also reported in Costa Rica. At least 116 people were killed and several more were injured. The earthquake was caused by movement on a convergent plate boundary. It…Source: Wikipedia (CC BY-SA)
Moment magnitude scale
Measure of earthquake size, in terms of the energy released
The moment magnitude scale is a measure of an earthquake's magnitude based on its seismic moment. Mw was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude/Richter scale (ML ) defined by Charles Francis Richter in 1935, it uses a…Source: Wikipedia (CC BY-SA)
Tsunami earthquake
Type of earthquake which triggers a tsunami of far-larger magnitude
In seismology, a tsunami earthquake is an earthquake which triggers a tsunami of significantly greater magnitude, as measured by shorter-period seismic waves. The term was introduced by Japanese seismologist Hiroo Kanamori in 1972. Such events are a result of relatively slow…Source: Wikipedia (CC BY-SA)