I just so happened to be stretched out on good ol’ Mother Earth the other night when an earthquake happened. On a Memorial Day overnight canoe trip, a friend and I had dragged our boats onto the gravel of a little island on the Chena River. After mosquitoes chased us into our tents and we’d […]
In 1958, a magnitude 7.8 earthquake triggered a rockslide into Southeast Alaska’s Lituya Bay, creating a tsunami that ran 1,700 feet up a mountainside before racing out to sea. Researchers now think the region’s widespread loss of glacier ice helped set the stage for the quake. In a recently published research article, scientists with the University […]
A new project will make it possible for scientists to better track a suite of phenomena in Alaska ranging from earthquakes to wildfires to sea ice. The five-year, $6.9 million project funded by the National Science Foundation will enhance measurements of Arctic change across western and northern Alaska. It’s led by the Alaska Earthquake Center, […]
Forty-one volcanoes that have erupted since the 1700s. Eleven percent of the world’s earthquakes. Glaciers of an ever-changing number that probably tops 100,000. Alaska has its share of superlatives, and here’s another one — Alaska has the largest maar on Earth. What’s a maar? It looks a lot like a lake, it’s circular and […]
Two remote California desert communities assessed damage after two major earthquakes hit the area at the end of last week, followed by thousands of smaller aftershocks. Ridgecrest and neighboring Trona were hit hard by the magnitude 7.1 quake that rocked the Mojave Desert towns Friday. A day earlier, a magnitude 6.4 temblor hit the […]
Mathematicians have devised a way of calculating the size of a tsunami and its destructive force well in advance of it making landfall by measuring fast-moving underwater sound waves, opening up the possibility of a real-time early warning system. The sound waves, known as acoustic gravity waves (AGWs), are naturally occurring and can be generated […]
Could an extra warm summer cause an earthquake in your backyard? Probably not… unless you live in Alaska. You probably know that friction in the earth’s crust causes earthquakes, but did you know that a little extra sunshine might increase your chances of experiencing an earthquake if you live where glaciers are present? That’s because […]
RIVERSIDE, Calif. – Seismologists at the University of California, Riverside studying earthquakes in the seismically and volcanically active Alaska-Aleutian subduction zone have found that “slow earthquakes” are occurring continuously, and could encourage damaging earthquakes. Slow earthquakes are quiet, can be as large as magnitude 7, and last days to years. Taking place mainly at the […]
On average, 40 volcanoes on land erupt into the atmosphere each month, while scores of others on the seafloor erupt into the ocean. A new time-lapse animation uniting volcanoes, earthquakes, and gaseous emissions reveals unforgettably the large, rigid plates that make the outermost shell of Earth and suggests the immense heat and energy beneath […]