"Hayes Volcano Hayes Volcano is a stratovolcano in southwestern Matanuska-Susitna Borough, Alaska, 135 km northwest of Anchorage, that was not discovered until 1975. It is responsible for a series of six major tephra layers in the Cook Inlet region of Alaska. Hayes was mostly destroyed by at least six catastrophic eruptions between 3,400 and 3,800 years ago, and the average volume of these eruptions was 2.4 cubic km. In comparison, the volume of the May 18, 1980 eruption of Mount St. Helens was about 1 cubic km. The eruptions of Hayes Volcano during that time were the most voluminous Holocene"
"1980 eruption of Mount St. Helens On May 18, 1980, a major volcanic eruption occurred at Mount St. Helens, a volcano located in Skamania County, in the U.S. state of Washington. The eruption (a VEI 5 event) was the most significant volcanic eruption to occur in the contiguous 48 U.S. states since the much smaller 1915 eruption of Lassen Peak in California. It has often been declared as the most disastrous volcanic eruption in U.S. history. The eruption was preceded by a two-month series of earthquakes and steam-venting episodes, caused by an injection of magma at shallow depth below the"
"the lower Cowlitz and Columbia Rivers. The May 18, 1980, event was the most deadly and economically destructive volcanic eruption in the history of the contiguous United States. Approximately fifty-seven people were killed directly from the blast and 200 houses, 47 bridges, of railways and of highway were destroyed; two people were killed indirectly in accidents that resulted from poor visibility, and two more suffered fatal heart attacks from shoveling ash. U.S. President Jimmy Carter surveyed the damage and said it looked more desolate than a moonscape. A film crew was dropped by helicopter on Mount St. Helens on May"
"volcano that created a large bulge and a fracture system on the mountain's north slope. An earthquake at 8:32:17 a.m. PDT (UTC−7) on Sunday, May 18, 1980, caused the entire weakened north face to slide away, creating the largest landslide ever recorded. This allowed the partly molten, high-pressure gas- and steam-rich rock in the volcano to suddenly explode northwards toward Spirit Lake in a hot mix of lava and pulverized older rock, overtaking the avalanching face. An eruption column rose into the atmosphere and deposited ash in 11 U.S. states. At the same time, snow, ice and several entire glaciers"
"same time as an eruption, but occasionally they may be triggered by other factors such as a seismic shock or heavy rainfall. They are particularly common on strato volcanoes, which can be massively destructive due to their large size. The most famous debris avalanche occurred at Mount St Helens during the massive eruption in 1980. On May 18, 1980, at 8:32 a.m. local time, a magnitude 5.1 earthquake shook Mount St. Helens. The bulge and surrounding area slid away in a gigantic rockslide and debris avalanche, releasing pressure, and triggering a major pumice and ash eruption of the volcano. The"
"18, 1980, following a period of heavy tremors and eruptions, the northeast face of Mount St. Helens exploded outward, destroying a large part of the top of the volcano. This eruption flattened the forests for many miles, killed 57 people, flooded the Columbia River and its tributaries with ash and mud and blanketed large parts of Washington in ash, making day look like night. Washington is well known for several prominent companies, the most notable of which are Microsoft, Amazon.com, Boeing, Nordstrom, Bon Marche, Costco, and Starbucks. Monopolies have a long history in the state as Bill Boeing's namesake company"
"volcanic eruption of Mount St. Helens on May 18, 1980. Dave Crockett, who had been with the station since 1975, had been covering the mountain every day for three weeks until being rotated out a few days prior. On the morning of May 18, he woke up at 3:00 a.m. in Seattle on a hunch that he would get some impressive video that day, and loaded up his news car and headed towards Mount St. Helens without anyone at KOMO knowing about it. He arrived at the mountain just as it was erupting. His news video, which shows an advancing"
"produced an additional five explosive eruptions between May and October 1980. Through early 1990 at least 21 periods of eruptive activity had occurred. The volcano remains active, with smaller, dome-building eruptions continuing into 2008. An eruption occurred on May 25, 1980, at 2:30 a.m. that sent an ash column into the atmosphere. The eruption was preceded by a sudden increase in earthquake activity and occurred during a rainstorm. Erratic wind from the storm carried ash from the eruption to the south and west, lightly dusting large parts of western Washington and Oregon. Pyroclastic flows exited the northern breach and covered"
"a number of whom were quartered at Golden Gardens Park. In eastern Washington, the Hanford Works atomic energy plant was opened in 1943, and played a major role in the construction of the nation's atomic bombs. On May 18, 1980, following a period of heavy tremors and eruptions, the northeast face of Mount St. Helens erupted violently, destroying a large part of the top of the volcano. The eruption flattened the forests, killed 57 people, flooded the Columbia River and its tributaries with ash and mud, and blanketed large parts of Washington eastward and other surrounding states in ash, making"
"of the best studied ever. It was a Plinian style eruption with a VEI=5 and was the most significant to occur in the lower 48 U.S. states in recorded history. An earthquake at 8:32 a.m. on May 18, 1980, caused the entire weakened north face to slide away. An ash column rose high into the atmosphere and deposited ash in 11 U.S. states. The eruption killed 57 people and thousands of animals and caused more than a billion U.S. dollars in damage. On May 22, 1915, an explosive eruption at Lassen Peak devastated nearby areas and rained volcanic ash as"
"eruption on May 18, 1980. Failures on volcanic flanks themselves are also common. For example, a part of the side of Casita Volcano in Nicaragua collapsed on October 30, 1998 during the heavy precipitation associated with the passage of Hurricane Mitch. Debris from the initial small failure eroded older deposits from the volcano and incorporated additional water and wet sediment from along its path, increasing in volume about ninefold. The lahar killed more than 2,000 people as it swept over the towns of El Porvenir and Rolando Rodriguez at the base of the mountain. Debris avalanches commonly occur at the"
"small eruptions of ash from 1831 to 1857, including a fairly large one in 1842. The vent was apparently at or near Goat Rocks on the northeast flank. Goat Rocks dome was the site of the bulge in the 1980 eruption, and it was obliterated in the major eruption event on May 18, 1980 that destroyed the entire north face and top of the mountain. On March 20, 1980, Mount St. Helens experienced a magnitude 4.2 earthquake; and, on March 27, steam venting started. By the end of April, the north side of the mountain had started to bulge. On"
"eruption of the mountain, which occurred on May 18, 1980, killed 57 people. The level of devastation caused by the ensuing ash cloud, earthquakes, electrical storms, and flooding was unprecedented and, the following day, Ray invoked her emergency powers to postpone local elections, which had been scheduled for May 20. Ray ran for reelection in 1980, enlisting Republican consultant Montgomery Johnson to head her campaign after her former manager, Butterworth, had defected to her rival, then-State Senator Jim McDermott. She lost to McDermott in a contentious Democratic primary election, 56%–41%, during which bumper stickers emblazoned with ""Nixy on Dixy"" and"
"1980 Eureka earthquake The 1980 Eureka earthquake (also known as the Gorda Basin earthquake) occurred on November 8 at along the northern coastal area of California in the United States. With a moment magnitude of 7.3 and a maximum Mercalli intensity of VII (""Very strong""), this strike-slip earthquake was the largest to occur in California in 28 years. Although damage was considered light, several loss estimates equaled or exceeded $2 million, and six injuries resulted when two vehicles came down with the partial collapse of a highway overpass on US 101 in Fields Landing. The north coast of California experiences"
"18, 1980, after working for six days straight, Glicken took the day off to attend an interview for his graduate work with his professor, Richard V. Fisher, in Mammoth, California. His research adviser and mentor David A. Johnston replaced him at his post, despite expressing concerns about its safety given indications of mobile magma within the volcano. After a magnitude 5.1 earthquake centered directly below the north slope triggered that part of the volcano to slide at 8:32 a.m., Mount St. Helens erupted. Johnston was killed after he was enveloped by swift pyroclastic flows that traveled down the mountain's flanks"
"caused by an injection of magma at shallow depth below the mountain that created a huge bulge and a fracture system on Mount St. Helens' north slope. An earthquake at 8:32 am on May 18, 1980, caused the entire weakened north face to slide away, suddenly exposing the partly molten, gas- and steam-rich rock in the volcano to lower pressure. The rock responded by exploding into a very hot mix of pulverized lava and older rock that sped toward Spirit Lake so fast that it quickly passed the avalanching north face. Alaska is known for its seismic and volcanic activity,"
"thick. The film was not salvageable, as the intense heat from the eruption had corrupted the negatives. The 1980 event was the deadliest and most destructive volcanic eruption in the history of the United States. A total of 57 people are known to have died, and more were left homeless when the ash falls and pyroclastic flows destroyed or buried 200 houses. In addition to Blackburn, resident Harry Randall Truman, photographer Robert Landsburg, and volcanologist David Alexander Johnston were killed. After his death, friends and coworkers of Blackburn came forward to compliment his pleasant character and his talent. Friends described"
"1980 Kalamazoo tornado The Kalamazoo Tornado of 1980 struck downtown Kalamazoo, Michigan, on Tuesday, May 13, 1980. The tornado, which touched down at 4:09 pm, was rated F3 on the Fujita scale. The tornado killed 5 people and injured 79. Damage was estimated at $50,000,000. The tornado left a path of destruction long during its approximately 20-minute duration. It was notable for having struck the heart of downtown, damaging or destroying many notable buildings, parks, and landmarks. The massive F3 caused a power outage so extensive, phone companies pleaded for people to only use phones for emergencies. In total, the"
"1980s lava dome. Activity increased, and on September 26, the U.S. Geological Survey (USGS) and Pacific Northwest Seismograph Network issued a ""notice of volcanic unrest"", stating that a ""hazardous event"" was possible, and the U.S. Forest Service closed the mountain to all climbing. They also closed some trails in the area, due to the risk of debris flows from the possible melting of the Crater Glacier in the volcanic crater. It also was very dangerous to be around there, as for the closed trails Seismic activity continued to accelerate following the USGS advisory, with earthquakes approaching magnitude 2.5 occurring at"
"of the Pacific Ring of Fire that includes over 160 active volcanoes. This volcano is well known for its ash explosions and pyroclastic flows. Mount St. Helens is most notorious for its major 1980 eruption, the deadliest and most economically destructive volcanic event in the history of the United States. Fifty-seven people were killed; 250 homes, 47 bridges, of railways, and of highway were destroyed. A massive debris avalanche triggered by an earthquake measuring 5.1 on the Richter scale caused an eruption that reduced the elevation of the mountain's summit from to , leaving a wide horseshoe-shaped crater. The debris"
"St. Helens (film) St. Helens, alternatively titled St. Helens, Killer Volcano, is a 1981 made-for-cable HBO television film directed by Ernest Pintoff and starring David Huffman, Art Carney, Cassie Yates, and Albert Salmi. The film centers on the events leading up to the cataclysmic 1980 eruption of Mount St. Helens in Washington, with the story beginning on the day volcanic activity started on March 20, 1980, and ending on the day of the eruption, May 18, 1980. The film premiered on May 18, 1981, on the first anniversary of the eruption. On March 20, 1980 an earthquake of 4.1 on"
"1980 Irpinia earthquake The 1980 Irpinia earthquake () took place in Southern Italy on November 23 with a moment magnitude of 6.9 and a maximum Mercalli intensity of X (""Extreme""). The shock was centered on the village of Conza and left at least 2,483 people dead, at least 7,700 injured, and 250,000 homeless. The quake struck at 18:34 UTC (19:34 local). The first jolt was followed by 90 aftershocks. There were three main shocks, each with epicenters in a different place, within 80 seconds. The largest shock registered a peak acceleration of 0.38g, with 10 seconds of motion greater than"
"and later west as the risk of an imminent eruption grew. Many local residents and sightseers violated the roadblock, which was planned to be moved further west by an order from Governor Dixy Lee Ray to take effect on May 19. An exception was made on May 17, allowing for the retrieval of belongings from various buildings during a four-hour period that was monitored by local authorities in case of a mass evacuation. On May 18, 1980, the north face of Mount St. Helens slid away and triggered a massive eruption that created a lahar that devastated the North Fork"
"few miles north of the volcano. Later that night, he pays a last visit to Harry. On the morning of May 18, 1980, David hikes to a ridge a 6 miles (10 km) north of Mount St. Helens to monitor a massive bulge that has been growing on the north face of the mountain for the past few weeks, while Harry goes fishing in Spirit Lake at the foot of the mountain. At 8:32 a.m. PDT the mountain's entire north face collapses in a massive landslide, causing the mountain to explode in a lateral eruption. The eruption kills both David"
"storm caused 5 deaths, 79 injuries, and about 1,200 people were left homeless. 1980 Kalamazoo tornado The Kalamazoo Tornado of 1980 struck downtown Kalamazoo, Michigan, on Tuesday, May 13, 1980. The tornado, which touched down at 4:09 pm, was rated F3 on the Fujita scale. The tornado killed 5 people and injured 79. Damage was estimated at $50,000,000. The tornado left a path of destruction long during its approximately 20-minute duration. It was notable for having struck the heart of downtown, damaging or destroying many notable buildings, parks, and landmarks. The massive F3 caused a power outage so extensive, phone"
"7, 1980, January 15, 1982, September 4, 1987, and August 17, 1989. Uncertain eruptions occurred in 1760, 1828, 1927, and 1996. In 1929 Gareloi Volcano underwent a major explosive eruption where it generated four lava flows, andesitic tuff, volcanic glass, and scoria of red tone. Thirteen craters, all located in the fissure, contributed to this episode. All are most likely phreatic. During the eruption, pyroclastic flows convened with tephra, as suggested by deposits. Lahar also streamed from the summit. On August 8, 1980 Gareloi erupted for the first time in records since 1929, sending ash plumes over into the atmosphere."
"2018 Volcán de Fuego eruption The 2018 eruption was a series of volcanic explosions and pyroclastic flows from the (Spanish for Volcano of Fire) in on Sunday 3 June 2018. The eruption included lahars, pyroclastic flows, and clouds of volcanic ash, which left almost no evacuation time and caused nearly two hundred people killed. It was the deadliest eruption in Guatemala since 1929. (Spanish for ""Volcano of Fire"") is one of the most active volcanoes in the world and is located from Guatemala City. It is a stratovolcano that has had more than 60 eruptions since 1524, including a major"
"David A. Johnston David Alexander Johnston (December 18, 1949 – May 18, 1980) was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of Mount St. Helens in Washington. A principal scientist on the USGS monitoring team, Johnston was killed in the eruption while manning an observation post away on the morning of May 18, 1980. He was the first to report the eruption, transmitting ""Vancouver! Vancouver! This is it!"" before he was swept away by a lateral blast. Despite a thorough search, Johnston's body was never found, but state highway workers discovered remnants"
"mountain might be reactivating. The tremors detected were ranging from 1 to 5 in intensity. There was a minor phreatic explosion in the Naglagbong pool area in Tiwi on July 29, 1980, ejecting mud and rocks up to , reaching in height and distances up to . One person was injured and two buildings were damaged by the explosion. Prior to the event, as early as July 6, the area was experiencing unusual microseisms recorded at seismic station of the Commission on Volcanology (COMVOL) - the predecessor of PHIVOLCS - in the area. Geysering was also observed on the pool,"
"growing bulge on the Mount St. Helens volcano in the state of Washington. Voight foresaw the collapse of the mountain's north flank as well as a powerful eruption. His predictions came true when St. Helens erupted in May 1980; Voight was then hired by the USGS to investigate the debris avalanche that initiated the eruption. After his work at Mount St. Helens brought him international recognition, Voight continued researching and guiding monitoring efforts at several active volcanoes throughout his career, including Nevado del Ruiz in Colombia, Mount Merapi in Indonesia, and Soufrière Hills, a volcano on the Caribbean island of"
"1980, eruption. In 1482, another large eruption rivaling the 1980 eruption in volume is known to have occurred. Ash and pumice piled northeast of the volcano to a thickness of ; away, the ash was deep. Large pyroclastic flows and mudflows subsequently rushed down St. Helens' west flanks and into the Kalama River drainage system. This 150-year period next saw the eruption of less silica-rich lava in the form of andesitic ash that formed at least eight alternating light- and dark-colored layers. Blocky andesite lava then flowed from St. Helens' summit crater down the volcano's southeast flank. Later, pyroclastic flows"
"two of them in historical time, in 806 and 1888. Seen from the south, Bandai presents a conical profile, but much of the north side of the volcano is missing as a result of the collapse of Ko-Bandai volcano during the 1888 eruption, in which a debris avalanche buried several villages and formed several large lakes. Nearly a century ago, the north flank of Mount Bandai collapsed during an eruption quite similar to the May 18, 1980, eruption of Mount St. Helens. After a week of seismic activity, a large earthquake on July 15, 1888, was followed by a tremendous"
"1980 Grand Island tornado outbreak The 1980 Grand Island tornado outbreak, also known as The Night of the Twisters, was a tornado outbreak that produced a series of destructive tornadoes that affected the city of Grand Island, Nebraska, on Tuesday, June 3, 1980. Seven tornadoes touched down in or near the city that night, killing five people and injuring 200. The name generally referred to by Grand Island area residents for the event, ""The Night of the Twisters"", comes from the semi-fictionalized book of the same name, loosely based on the June 3rd, 1980 tornadoes, by author Ivy Ruckman, which"