Harmonic tremor, a sustained release of seismic and infrasonic energy typically associated with the underground movement of magma, the venting of volcanic gases from magma, or both.[9]
Induced seismicity, typically minor earthquakes and tremors that are caused by human activity that alters the stresses and strains on the Earth's crust.[10]
Megathrust earthquake, an earthquake occurring at subduction zones at destructive convergent plate boundaries, where one tectonic plate is forced underneath another.[14]
Slow earthquake, a discontinuous, earthquake-like event that releases energy over a period of hours to months, rather than the seconds to minutes characteristic of a typical earthquake.[16]
Submarine earthquake, an earthquake that occurs underwater at the bottom of a body of water, especially an ocean.[17]
Supershear earthquake, an earthquake in which the propagation of the rupture along the fault surface occurs at speeds in excess of the seismic shear wave (S-wave) velocity, causing an effect analogous to a sonic boom.[18]
Tsunami earthquake, an earthquake that triggers a tsunami of a magnitude that is very much larger than the magnitude of the earthquake as measured by shorter-period seismic waves.[20]
^Iwata, Tomotaka; Asano, Kimiyuki (2011). "Characterization of the Heterogeneous Source Model of Intraslab Earthquakes Toward Strong Ground Motion Prediction". Pure and Applied Geophysics. 168 (1–2): 117–124. Bibcode:2011PApGe.168..117I. doi:10.1007/s00024-010-0128-7. S2CID140602323.
^Senoa, Tetsuzo; Yoshida, Masaki (2004). "Where and why do large shallow intraslab earthquakes occur?". Physics of the Earth and Planetary Interiors. 141 (3): 183–206. Bibcode:2004PEPI..141..183S. doi:10.1016/j.pepi.2003.11.002.
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