«As a result,
a cluster of earthquakes occurs,» he said.
The Science paper, released in July 2014, tied four high - volume injection wells to
a cluster of earthquakes in Jones, just west of Prague.
In recent years, several new
clusters of earthquakes (red dots) have occurred in the southern Delaware Basin, near the town of Fort Stockton, and another cluster has occurred near Midland.
For example,
a clustering of earthquakes, the largest with magnitude between 8.0 and 8.5, hit off the coast of Crete in 365 AD.
Not exact matches
As it has countless times in the past and present, (the Holocaust, the Bubonic Plague, the World Wars, countless natural disasters, (floods, storms,
earthquakes, etc), the Sky Myth was on vacation when, on a tiny speck
of a planet, on a boring arm
of the galaxy, in an average galaxy
cluster among billions, a bad thing happened.
A
cluster of low - magnitude
earthquakes in the New York region has piqued the interest
of residents, while some geologists predict the increase in temblors will continue and a large - scale one could be coming.
Earthquakes do tend to
cluster, though, meaning any tremors raise the likelihood
of imminent seismic events by a factor
of a hundred or even a thousand.
To understand what makes an
earthquake stop, it's important to understand what makes it go: the release
of energy stored in rocks
clustered around a fault, which separates masses
of the earth's crust known as tectonic plates.
Lurking
clusters of seismic energy could explain why large
earthquakes have occurred where we least expected them
The type
of damage sustained by temples
clustered around two towns in the region — Chamba and Bharmour — suggests that the Chamba temples may have been affected by the 1555
earthquake, while the Bharmour temples were damaged by the 1905 quake, the seismologists conclude.
Asked what's new with these findings Vasiliki Mouslopoulou explains: «For the first time temporal
clustering of great -
earthquakes is shown on active subduction margins, indicating an intense period
of strain release due to successive
earthquakes, followed by long periods
of seismic quiescence.»
Instead, they reflect a propensity for natural temporal variations in uplift rates where recent (not more than 10,000 years ago) uplift has been greatest due to temporal
clustering of large - magnitude (bigger than M7)
earthquakes on upper - plate faults.
Further, it alerts scientists that
earthquake clustering may not only characterise shallow faulting and smaller - sized
earthquakes with magnitudes lower than M7 but it is a property
of large subduction
earthquakes.
Such
earthquake swarms typically are associated with the movement
of molten rock below ground, which geologists credited for the recent quake
cluster at Yellowstone National Park, or they are linked to an active fault, he said on Tuesday.
The team also showed that calcite associated with two seismic events in the
earthquake cluster indicates very rapid carbon dioxide degassing, which can occur when fluid under high pressure is released — like opening the top
of a shaken bottle
of soda.
«Fortunately, these catastrophic
earthquakes don't happen frequently, but we can input these site specific characteristics into computer models — such as those made possible with the CEES
cluster — in the hopes
of identifying acoustic signatures that indicates whether or not an
earthquake has generated a large tsunami.»
Looking at seismic records near Fox Creek, in northwest Alberta, where there are six drilling sites, researchers found an intermittent set
of induced
earthquakes between December 2014 and March 2015,
clustered around fracking operations.
A new study
of the Jones
earthquake swarm, occurring near Oklahoma City since 2008, demonstrates that a small
cluster of high - volume injection wells triggered
earthquakes tens
of kilometers away.
Earthquakes are initiated by the release
of energy stored in rocks
clustered around a fault, which separates masses
of Earth's crust known as tectonic plates.
The model shows that
clusters can occur on faults with long - term memory, so that even after a big
earthquake happens, the chance
of another
earthquake can stay high.
They found that slow
earthquake areas and the ultra-slow-velocity layers
cluster together, and that regions
of non-volcanic tremors are adjacent to those
clusters.
As a part
of this investigation's support materials, the teacher guide demonstrates methods for identification
of plate boundary areas by locating
earthquake epicenter
clusters on the Web GIS (Figure 4).
As soon as I heard about the 5.6 - magnitude
earthquake amid a
cluster of recent lesser tremors in Oklahoma, I figured the potential relationship
of some
earthquakes to drilling would emerge.