GLOBAL VOLCANISM: The Most Dangerous Volcano In The United States Is Roaring To Life - Yellowstone National Park's Recent Earthquake Swarm Noted By Scientists!

<div style="text-align: justify;"><b><span style="color: yellow;">November 05, 2013 - UNITED STATES </span></b>- Southwestern Montana and Yellowstone National Park are certainly no strangers to earthquakes, but in September, several clusters of earthquakes were raising the eyebrows of scientists. <br /><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody><tr><td style="text-align: center;"><a href="http://1.bp.blogspot.com/-FKGfhwNjk2U/UnmOCet_2KI/AAAAAAABNHg/eNXwToN-Vr4/s1600/yellowstone01.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://1.bp.blogspot.com/-FKGfhwNjk2U/UnmOCet_2KI/AAAAAAABNHg/eNXwToN-Vr4/s1600/yellowstone01.jpg" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">Yellowstone National Park's recent earthquake swarm noted by scientists.</td></tr></tbody></table><br /><br />Small earthquakes are normal around Yellowstone National Park, but between September 10th and 16th, early 130 small magnitude earthquakes with different epicenters ratled the park. <br /><br />These clusters of earthquakes are known as swarms. <br /><br />Mike Stickney, the director of Earthquake Studies at Montana Tech in Butte, said, "Earthquake clusters kind of come in two flavors. One is a main shock-aftershock sequence where the main shock is a big earthquake followed by smaller earthquakes that typically die away with time. A swarm is just is a bunch of earthquakes without any outstanding earthquake. You get numerous earthquakes with similar magnitude in that sequence of events." <br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="http://2.bp.blogspot.com/-JtGtjfMxHMA/UnmOB9f32vI/AAAAAAABNHY/VIJ-C3_4ETc/s1600/yellowstone02.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://2.bp.blogspot.com/-JtGtjfMxHMA/UnmOB9f32vI/AAAAAAABNHY/VIJ-C3_4ETc/s1600/yellowstone02.jpg" /></a></div><br /><br />The rumbles that hit Yellowstone in September fall into the second category. <br /><br />Stickney says, "They were actually very dramatic swarms if you were looking at seismograph centered near the epicenter of those earthquakes." <br /><br />"There would be two, three or four-minute earthquakes going off every minute. Most of those were tiny magnitude one or smaller earthquakes," he said. <br /><br />Visitors to the park likely didn't even known it was happening. <br /><br />"Depending on how excited they were about the animals they might not have even noticed the earthquake," Stickney said. <br /><br />He says that there are fairly logical explanations and one of them isn't necessarily that Yellowstone's volcano is roaring back to life. <br /><br />"There is good evidence to suggest that as magma, the molten rock at depth, cools, and crystallizes, it releases volatile water and gasses and those make their way out through fractures in the earth to the surface we see those as geothermal features in the park," he says. <br /><br />"That fluid migrating through the earth's crust, we can think of that as lubricating some of those fractures and can produce some of those earthquakes. Probably those swarms in Yellowstone are related to the overall volcanic activity at depth and not necessarily indicating that something is getting ready to erupt," Stickney explains. <br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="http://4.bp.blogspot.com/-Pgko7WmAPjQ/UnmOCM__cBI/AAAAAAABNHc/YmRPPDqjkIM/s1600/yellowstone03.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://4.bp.blogspot.com/-Pgko7WmAPjQ/UnmOCM__cBI/AAAAAAABNHc/YmRPPDqjkIM/s1600/yellowstone03.jpg" /></a></div><br /><br />In fact, according to Stickney, it could be quite the opposite. The volcanic activity might just be quieting down, and those swarms may be just the result of gasses being released. <br /><br />Stickney says that we know about 75 faults around western Montana that show evidence of seismic activity and only a handful of those faults have been studied in detail. <br /><br />Scientist hope to be able to study them in more detail to understand how and why those faults might move. - <a href="http://www.kxlh.com/news/yellowstone-national-park-s-recent-earthquake-swarm-noted-by-scientists/"><span style="color: orange;"><b>KXLH</b></span></a>.<br /><br /><br /> <br /></div>

California Earth Crust Earthquakes Idaho Montana Pacific Northwest Propagating Rupture Slab Super-Volcanoes Supervolcanoes Tectonic Plates Volcanoes Wyoming Yellowstone Yellowstone National Park GLOBAL VOLCANISM: The Most Dangerous Volcano In The United States Is Roaring To Life - Yellowstone National Park's Recent Earthquake Swarm Noted By Scientists!

November 05, 2013 - UNITED STATES - Southwestern Montana and Yellowstone National Park are certainly no strangers to earthquakes, but in Se...

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GLOBAL VOLCANISM: The Most Dangerous Volcano In The United States Is Roaring To Life - More Earthquake Swarms Reported In Yellowstone During October, 2013!

<div style="text-align: justify;"><b><span style="color: yellow;">November 04, 2013 - UNITED STATES </span></b>- According to <a href="http://volcanoes.usgs.gov/observatories/yvo/index.html"><span style="color: orange;"><b>Yellowstone Volcano Observatory</b></span></a> monthly update, University of Utah reported 168 earthquakes in the Yellowstone National Park region during October 2013. The largest event was a minor earthquake of magnitude 2.9 on October 30, 2013 at 06:58 UTC, located about 11.2 km (7 miles) north of Lake, WY.<br /><br /><br /><table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody><tr><td style="text-align: center;"><a href="http://2.bp.blogspot.com/-d2c7OV8KqU0/UnfzB6Uo0JI/AAAAAAABM4c/kw-g7drJ70E/s1600/yellowstone.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="http://2.bp.blogspot.com/-d2c7OV8KqU0/UnfzB6Uo0JI/AAAAAAABM4c/kw-g7drJ70E/s1600/yellowstone.jpg" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;">The largest of the quakes shook the ground near Old Faithful Geyser. </td></tr></tbody></table><br />Comparing earthquake activity in October to the previous month, it seems seismicity returned to relatively normal background levels.<br /><span style="background-color: yellow;"><span style="color: red;"><br /></span></span><span style="background-color: yellow;"><span style="color: red;"> </span></span><b></b><br /><div style="background-color: yellow;"><b><span style="color: red;"><b>October</b> seismicity in Yellowstone was marked by three distinct clusters of episodic earthquakes:</span></b></div><br /><ol><li>A<b> swarm of 54 earthquakes</b>, ~12 km (7.5 miles) north of Old Faithful, WY, occurred on October 5th, the largest earthquake in the swarm (magnitude 2.8) occurred at 15:09 UTC ~12 km north of Old Faithful, WY.</li><li><span style="color: yellow;">A <b>small swarm of 16 earthquakes</b>,</span> ~21 km (13 miles) east-northeast of Island Park, ID took place October 20 - 23, the largest earthquake (magnitude 2.1) occurred October 20th at 08:28 UTC.</li><li>A<b> <span style="color: yellow;">small swarm of 15 earthquakes</span></b><span style="color: yellow;">,</span> ~9.6 km (6 miles) north of West Yellowstone, MT occurred October 12, the largest earthquake (magnitude 2.3) occurred at 07:35 UTC.</li></ol><br />During September 2013, there were 469 earthquakes reported in the Yellowstone National Park region. The largest event was a minor earthquake of magnitude 3.6 on September 15, 2013 at 16:53 UTC, located about 11.2 km (7 miles) north of Old Faithful, WY.<br /><br /><span style="background-color: yellow;"><span style="color: red;"><b><br /></b></span></span><span style="background-color: yellow;"><span style="color: red;"><b> </b></span></span><br /><div style="background-color: yellow;"><span style="color: red;"><b>September seismicity in Yellowstone was marked by five distinct clusters of episodic earthquakes:</b></span></div><br /><ol><li>A <span style="color: yellow;"><b>notable swarm of 246 earthquakes</b>,</span> ~8km (5 miles) north of Old Faithful, WY, began September 13 and tapered off September 20th, including the largest event of the month on September 15 (magnitude 3.6).</li><li><span style="color: yellow;"><b>81 events occurred in an episodic swarm</b></span> ~27.3 km (17 miles) east-northeast of West Yellowstone, MT, with swarm activity occurring September 13 and again from September 24, through September 30. The largest earthquake of the swarm (magnitude 3.5) occurred September 13, at 13:56 UTC~25.7 km (16 miles) south-southwest of Mammoth, WY.</li><li>A <span style="color: yellow;"><b>small swarm of 27 earthquakes</b>,</span> ~9.6 km (6 miles) north of West Yellowstone, MT, took place on September 27 and 28, with the largest event (magnitude 2.3) occurring September 27, at 16:40 UTC.</li><li>A <span style="color: yellow;"><b>small swarm of 23 earthquakes</b>,</span> ~14.4 km (9 miles) north-northeast of Old Faithful, WY, began September 3 and ended September 5. The largest earthquake (magnitude 2.2) occurred September 4, at 13:10 UTC ~14.4 km north-northeast of Old Faithful, WY.</li><li>The southernmost September 2013 <span style="color: yellow;"><b>swarm of 21 earthquakes</b>,</span> ~11.2 km (7 miles) south-southwest of West Thumb, WY, occurred September 10. The largest earthquake (magnitude 3.3) took place in the center of the swarm at 13:46 AM MDT.</li></ol>Yellowstone earthquake activity in September was at elevated levels during the above swarms but, has returned to a relatively normal background level by October 1, 2013.<br /><br />Slow subsidence of the caldera, which began in early 2010, continues. Current deformation patterns at Yellowstone remain within historical norms.<br /><br />Read more: <a href="http://volcanoes.usgs.gov/volcanoes/yellowstone/yellowstone_monitoring_117.html">Repeating earthquakes suggest volcanic and tectonic origins of Yellowstone seismic swarms</a><br /><br />Click <a href="http://volcanoes.usgs.gov/volcanoes/yellowstone/yellowstone_multimedia_10.html"><span style="color: orange;"><b>HERE</b></span></a> for the Yellowstone Webcam.<br /><br />- <a href="http://thewatchers.adorraeli.com/2013/11/04/more-earthquake-swarms-reported-in-yellowstone-during-october-2013/"><span style="color: orange;"><b>The Watchers</b></span></a>.<br /><br /><br /></div>

California Earth Crust Earthquakes Idaho Montana Pacific Northwest Propagating Rupture Slab Super-Volcanoes Supervolcanoes Tectonic Plates Volcanoes Wyoming Yellowstone Yellowstone National Park GLOBAL VOLCANISM: The Most Dangerous Volcano In The United States Is Roaring To Life - More Earthquake Swarms Reported In Yellowstone During October, 2013!

November 04, 2013 - UNITED STATES - According to Yellowstone Volcano Observatory monthly update, University of Utah reported 168 earthquak...

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