what is a slow slip earthquake

Episodic tremor and slip (ETS) is a seismological phenomenon observed in some subduction zones that is characterized by non-earthquake seismic rumbling, or tremor, and slow slip along the plate interface. Every 12-15 months these slow earthquakes occur in the Cascadia Subduction Zone beneath southern Vancouver Island and northern Washington. Slow-slip earthquakes create an ideal lab for investigating fault behavior along the shallow portion of subduction zones. A new study reveals what this means for future large earthquakes in the region. These slow slip events occur all over the world and possibly help trigger larger earthquakes. A month-long, slow-motion earthquake has pushed parts of the North Island's east coast 3 to 4 centimetres further east without anyone other than scientists knowing.

Slow slip transients on faults can last from seconds to months and stitch together the earthquake cycle.

Slow slip: A new kind of earthquake John E. Vidale and Heidi Houston Sandwiched between the shallow region of sudden, infrequent earthquakes and the deeper home to continuous viscous motion lies an intermediate realm of intermittent sliding and rumbling. So if we better understand the slow-slip events, we should better understand the earthquake potential of subduction zones. According to a new study in Earth and Planetary Science Letters, the temblor was a very peculiar type of earthquake known as a slow slip event. One of these events is happening right now and is possibly connected to the magnitude 4.8 earthquake NE of Victoria, Canada that occurred on December 29.

To study the New Zealand slow-slip event, Webb and his colleagues installed an array of 24 absolute pressure gauges and 15 ocean-bottom seismometers directly above the Hikurangi Trough, where two plates converge. Such slow earth - quakes have been detected worldwide.

Slow slip event has been going on for over a year and this is a possible build up to a strong earthquake but its not carved in stone and it doesn’t happen during but after the slow slip stops (even if one ever goes off). It was reported that around 1 month before the earthquake occurred, there was a point where a “slow slip” occurred. NIWA principal scientist Philip Barnes said the international science …

Slow slip earthquakes take place slowly over days to months, instead of energy being released suddenly with sometimes catastrophic results.

Finding slow-slip earthquakes could help reveal some of those secrets. A ship used for studying slow-slip earthquakes off New Zealand's east coast. What Is a Slow Earthquake? While a regular earthquake is a quick slip, a slow earthquake is a slow slip causing little tremble on the ground surface. Episodic tremor and slip, a type of aseismic fault slip or slow slip, accounts for a large amount of fault motion on the deeper extent of the Cascadia Subduction Zone.

It may occur in the form of ordinary earthquakes or as slow slip that is not felt. Many aftershocks occur on the causative fault or its extension into the deeper earth. Here, we connect seismic and geodetic data from the Mexican subduction zone to explore an instrumental blind spot.

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