Back زلزال بطيء Arabic زمینلرزه کند Persian Séisme lent French スロースリップ Japanese 슬로우 슬립 Korean سست زلزلہ Urdu Động đất chậm Vietnamese 慢地震 Chinese
| Part of a series on |
| Earthquakes |
|---|
 |
A slow earthquake, also known as a silent earthquake, is 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. First detected using long term strain measurements,[1] most slow earthquakes now appear to be accompanied by fluid flow and related tremor,[2] which can be detected and approximately located using seismometer data filtered appropriately (typically in the 1–5 Hz band). That is, they are quiet compared to a regular earthquake, but not "silent" as described in the past.[3]
Slow earthquakes should not be confused with tsunami earthquakes, in which relatively slow rupture velocity produces tsunami out of proportion to the triggering earthquake. In a tsunami earthquake, the rupture propagates along the fault more slowly than usual, but the energy release occurs on a similar timescale to other earthquakes.
- ^ Michael R. Forrest. "Slow Earthquakes". Southern California Earthquake Center. Retrieved 2010-05-05.
- ^ Brown, Kevin M.; Tryon, Michael D.; DeShon, Heather R.; Dorman, LeRoy M.; Schwartz, Susan Y. (2005). "Correlated transient fluid pulsing and seismic tremor in the Costa Rica subduction zone" (PDF). Earth and Planetary Science Letters. 238 (1–2): 189–203. Bibcode:2005E&PSL.238..189B. doi:10.1016/j.epsl.2005.06.055. Archived from the original (PDF) on 2013-03-13. Retrieved 2014-03-16.
- ^ Timothy I. Melbourne & Frank H. Webb (2003-06-20). "GEOPHYSICS: Enhanced: Slow But Not Quite Silent". Science. 300 (5627): 1886–1887. doi:10.1126/science.1086163. PMID 12817131. S2CID 124520126.