Iceland volcano erupts LIVE: ‘Tongue of lava’ flowing west | Live Science

A volcano in Iceland is now erupting after weeks of earthquakes rocking the region, according to a statement released by the Iceland Met Office on Monday (Dec. 18).

The country has been bracing itself for an imminent volcanic eruption on the Reykjanes Peninsula for weeks. Grindavík, a small fishing town in the southwest corner of the island with a population of around 2,800 people, had previously been evacuated in November after a sinkhole measuring 3.2 feet (1 meter) deep appeared in the town.

Seismic activity began increasing in the area around the Fagradalsfjall volcano on Oct. 25, when more than 1,000 earthquakes north of Grindavík occurred in the space of just hours. Two strong earthquakes, measuring magnitudes 3.9 and 4.5, hit at a depth of around 3 miles (5 kilometers). Over the following two weeks, seismic activity continued, with hundreds of earthquakes and uplifts recorded each day, indicating that magma was accumulating beneath the ground.

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Daily Crunch: Android phones become earthquake detectors | TechCrunch

Google said that smartphone accelerometers are sensitive enough to detect P-waves, which are the first waves to arrive during an earthquake. So if your Android phone thinks it has detected an earthquake, it will communicate with a central server to confirm.

In California, Google is also partnering with the United States Geological Survey and California Governor’s Office of Emergency Services to provide earthquake alerts. For everyone else, you’ll only see this earthquake data if you search for “earthquake” or a similar term.

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Shale shocked: USGS links ‘remarkable increase’ in earthquakes to fracking | Grist

The study found that the frequency of earthquakes started rising in 2001 across a broad swath of the country between Alabama and Montana. In 2009, there were 50 earthquakes greater than magnitude-3.0, the abstract states, then 87 quakes in 2010. The 134 earthquakes in the zone last year is a sixfold increase over 20th century levels.

The surge in the last few years corresponds to a nationwide surge in shale drilling, which requires disposal of millions of gallons of wastewater for each well. According to the federal Energy Information Administration, shale gas production grew, on average, nearly 50 percent a year from 2006 to 2010.

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