USGS @USGS Twitter profile

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8 years

Alaska is warming 2x fast from #climatechange as the rest of the US. Hello, #drought & fire

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4 years

The Nevada earthquake has just been upgraded to a M 6.5:

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6 years

Dome fountain of episode 10, October 10–13, 1969, eruption of Kilauea Volcano. This dome fountain is about 20 m (65 ft) high. Symmetrical dome fountains such as this are rare. #Tbt #HI @Volcanoes_NPS

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3 years

Forty-one years ago, Mount St. Helens cataclysmically erupted. The May 18, 1980, eruption and its effects were heavily photographed from numerous vantage points, but click here: to view rarely seen archival footage of the rising ash column.

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6 years

One tectonic plate bumped into another and said, "Sorry, my fault."

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3 years

Reminder: Monday, January 18th - entrance to all National Parks is free in honor of Martin Luther King Jr. Day #savethedate #GetOutside #MLKDay2021

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8 months

Kīlauea volcano is now erupting! Watch it live at @USGSVolcanoes #eruption #hawaii #kilauea

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7 months

Big news: USGS scientists & partners have confirmed, with 2 new lines of evidence, that human footprints found in White Sands Nat'l Park show that people lived in North America 21-23,000 yrs ago—much earlier than previously thought! More here: Imgs: NPS

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4 years

M 7.4 - 11 km SSW of Santa María Zapotitlán, Mexico.

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4 years

In Puerto Rico, earthquakes are more active than normal. These earthquakes, also called aftershocks, are occurring near the mainshock and are part of what we call a sequence. 1/5

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3 months

Today marks the 30th anniversary of the Northridge earthquake, which jolted the greater LA area awake at 4:31am on 17 January 1994. Read about the tools we have gained since then:

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4 years

If you felt the 5.1 Sparta, NC earthquake then be sure to submit a “Did You Feel It” report. Keep up to date on any changes at:

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4 years

More on the M 6.5 earthquake - 72km W of Challis, Idaho that just occurred here: Please let us know what you felt here:

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4 years

The area around the Mw6.4 Nevada EQ will continue to experience more earthquakes than usual. Some may be larger, but many smaller. Follow our aftershock forecast () and remember to always Drop, Cover, and Hold on if you feel shaking. #usgs #NVQuake .

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3 years

Geology and Ecology of North Cascades National Park #FindYourPark #washington

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4 years

A new Hawaiian Island is forming! The Lō‘ihi Seamount is taking shape beneath the Pacific Ocean. Although it's exciting to watch an island form, it’s still too early to make travel reservations—it won’t peek from the ocean surface for another 10,000–100,000 yrs. #OceanMonth2020

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7 years

#Whooping cranes make some seriously awesome snow angels during their takeoff!

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5 years

This photo was taken on 178 SW of Trona. The road is now closed for repairs.

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4 years

New aftershock scenario forecast indicates 84% chance that no more large earthquakes (>M 6.0) will occur in Puerto Rico over next 30-days. Moderate (M 5.0+) and light shaking (M 3.0+) still likely. Read more in our Top Story:

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5 years

This video shows earthquake events a few hours before the M6.4 on July 4th, 2019 to present (as of above noon on July 8th, 2019). #earthquake #usgs #californiaearthquake

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4 years

Before it erupted on May 18th, 1980, Mount St. Helens was considered one of the most beautiful peaks in the Cascade Range. Spirit Lake was a popular area for camping, boating, fishing and hiking. To see more photos, visit: Photo: US Forest Service #MSH40

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6 years

The M 7.9 occurred as the result of strike slip faulting. At it's location, the Pacific plate is converging with the North America plate. Over the preceding century, 11 other M7+ earthquakes have occurred within 600 km of today's earthquake.

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2 years

🎇Happy #4thofJuly !🎇 As you safely and responsibly enjoy the #fireworks 🎆 today, check out the #minerals that give them their gorgeous colors. #DYK that those minerals have other uses in our lives? Some of them are even #criticalminerals :

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7 years

A magnitude 7.8 earthquake struck New Zealand on November 13, 2016 at 11:02:56 UTC.

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1 year

Good morning Buffalo! More on this morning's M3.8 earthquake here: . Please let us know what you felt here: #WestSeneca #NY

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4 years

The USGS Library is commemorating the 40th anniversary of the 1980 eruption of Mount St. Helens with a special online exhibit. The exhibit features images, reports, personnel interviews, and more: #40YearsAgo #MSH40

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6 years

M 5.1 - 10km ENE of Dover, Delaware Don't forget to send the USGS a "Did You Feel It!" report

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4 years

A M7.7 earthquake has occurred 125km NNW of Lucea, Jamaica A link to the Did You Feel It Form can be found here:

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3 years

Happy Birthday to Black Canyon of the Gunnison National Park, CO (NM designated on 3/2/1933). Photo: National Park Service #FindYourPark #colorado

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3 years

Happy 92nd birthday to #Arches National Park! First established as a #nationalmonument in 1929, it was later designated a #nationalpark in 1971. Help us celebrate by sharing your pics of this national treasure. @ArchesNPS

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6 years

Watermelon tourmaline, a form of the boron silicate mineral that bears a striking resemblance to the perennial summer treat. #NationalWatermelonDay

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4 years

On May 18, 1980, Mount St. Helens unleashed the most devastating eruption in U.S. history. To learn how the eruption changed the future of volcanology, click here:

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1 year

May 18 is the anniversary of the 1980 Mount St. Helens eruption that changed how we view volcanoes. Read more about the ways Mount St. Helens changed our world. @GPNF @MSHInstitute #VolcanoAwarenessMonth

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7 years

Alerts were sent for a M6.8 in California. This was an error. More information to come.

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7 years

It's our #birthday ! Today we're 138 yrs old. Little known is this musical gem—USGS Centennial March from our 100yr b-day. Thx @usnavyband

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3 years

It's #MagmaMonday - This image captures the last high fountain of the 1969-1974 Maunaulu eruption of #K īlauea Volcano, Hawai‘i. More images here: #volcanoes

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7 years

Today is #InternationalWomensDay . So, what do @USGS women scientists do? Everything! #WomeninScience

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6 years

#OnThisDay in 1980, M5.1 #EQ shakes Mount St. Helens. The northern flank of the volcano slides away in massive landslide (largest in recorded history), followed by a lateral blast traveling 300 mph. Forest within 6+ miles of the blast is leveled

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5 years

Bats don't always appreciate being handled for research, but after examination they often appreciate the warmth and need a little push to go. This Western red bat was captured during USGS research to learn about their ecology, distribution, and movement patterns. #BatWeek

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4 years

#USGS #earthquake experts are in #PuertoRico installing temporary seismometers to help track seismic events including a Jan. 7 magnitude 6.4 quake and to improve #aftershock forecasts. The instruments supplement a permanent Puerto Rico Seismic Network. @fema @redsismica

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5 years

USGS Earthquake Science Center Mobile Laser Scanning truck scanning the surface rupture near the zone of maximum surface displacement of the M7.1 Searles Valley earthquake. Photo credit: Ben Brooks, Todd Ericksen USGS-ESC

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5 years

Paleowetlands: Dry as a bone now, but 13,000 years ago, this area in SE Arizona was the site of a shallow marsh teeming with megafauna. The black mat (just above the chalky white bed in middle) indicates an abrupt change in climate conditions #Geology101

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4 years

The magnitude 5.9 quake in #PuertoRico this morning caused our 7-day aftershock forecast to change. We now estimate an increased probability of 12% for an aftershock of M6.0 or greater. Keep up-to-date at:

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4 years

This is water. Water is good at recycling. Be like water. #AmericaRecyclesDay ♻️

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4 years

Devils Postpile National Monument was established #onthisday in 1911. These spectacular formations were created by slow-cooling, uniform lava flows. More here:

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2 years

#OnThisDay in 1980 - Mount St. Helens erupted. Learn more about Mount St. Helens in these helpful reference links: Geology & History: Fact Sheet 2020-3031: Feature Story (2020):

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7 years

Regarding:

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7 years

Alerts were sent for a M6.8 in California. This was an error. More information to come.

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2 years

Did you feel the quake this afternoon in the SF Bay Area? Let us know here

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4 years

Las Vegas 1986 & 2019. Visit our Earthshots website to see how we use satellite imagery to track change over time - #landsat

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4 years

Interested in Plate Tectonics? This Dynamic Earth is a must-read (available online)! #earthquakes #volcanoes #naturalhazards

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6 years

Alaska's magnitude 7.9 earthquake rattled Earth's plumbing 3,800 miles away in Florida, where water levels in 2 wells spiked within minutes. How can this happen? Find out at

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6 years

1st woman geologist hired at USGS (1896), Florence Bascom established geology dept at Bryn Mawr College (1901) #WomenInScience #IWD2018 #WomensHistoryMonth #Tbt #history

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3 years

The correct answer to our twitter poll question (with 21% of the votes) is 169 - There are 169 potentially active volcanoes in the United States. Thanks for playing! Pic: Mount Shasta 🌋 #magmamonday

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6 years

Just released: Earth As Art 5 - Our latest collection of awe-inspiring views of the Earth. Download for free here:

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7 years

Happy Birthday Oregon (February 14, 1859)

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3 months

2024 began with a major #earthquake in Japan, could a similar thing happen here? Our updated National Seismic Hazard Model shows what parts of the U.S. could experience damaging earthquakes. What’s the #earthquake hazard where you live?

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8 years

Happy 158th birthday, Richard Oldham, discoverer of Earth's core from 1897 great earthquake "shadow zone".

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4 years

Mesa Verde National Park, which was was created on June 29, 1906, is a beautiful example of how geology affects landscapes and people. Explore the geology and ecology of Mesa Verde at:

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4 years

Slickensides are polished, grooved rock surfaces caused by one rock mass moving across another on a fault. Photo: Wasatch fault scarp, Utah. Lance the good boy for scale 🐕 #Geology101 #geology ⛏️

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4 years

Since many students are home, check out the new USGS Learning from Home Webpage. Your first stop for learning resources from USGS! Browse by grade level for fun and educational activities.

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6 years

Any history buffs out there? Browse our entire collection of historic maps (going back to the late 1800's) here: #MappingMonday

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4 years

This image captures the last high fountain of the 1969-1974 Mauna Ulu eruption of Kīlauea Volcano, Hawai‘i. More incredible images here: #MagmaMonday

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4 years

Hankering for an in-depth look at the 4.5-billion-year-old history of Earth’s nearest neighbor? Well, the #USGS has just released the most detailed geologic map of the moon ever created. Start digging around & see what you can discover.

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6 years

While Hurricane Michael's winds and storm surge were devastating, the rains also left their mark, triggering flash floods and high waters all along the storm track. #TurnAroundDontDrown #HurricaneMichael #flooding #waterdata #dataviz

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11 months

Happy 121st Birthday to Crater Lake National Park! 🎂 Occupying a caldera formed 7,700 years ago by the collapse of Mount Mazama, Crater Lake is the deepest lake in the U.S. @CraterLakeNPS #volcanoes #NaturalHazards #oregon #FindYourPark

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6 years

Did You Feel the M5.3 EQ that just took place off the Channel Islands, CA? Please let us know here:

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7 years

Crater Lake Revealed - See what lies beneath the surface #MappingMonday

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1 year

Since the size of volcanic eruptions can’t be determined by instruments, the Volcanic Explosivity Index or VEI is used to express the size of explosive volcanic eruptions. Learn about the VEI in this week’s edition of Caldera Chronicles: #Volcanoes 🌋

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5 years

Earthshots of Las Vegas from 1986 and 2019. #TransformationTuesday

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5 years

THREAD: Major (Mw 7.1) quake occurred 17 km NNE of Ridgecrest, CA on China Lake Naval Air Center at 8:19pm local time, July 5, 2019. Closest large pop. center is Ridgecrest with pop. of 28k people. This is continuation of sequence that started w/Mw 6.4 approx. 36 hrs beforehand

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8 years

Born on this day, 13 May 1888, Inge Lehmann. Discovered Earth had inner and outer cores. #WomenInScience

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6 years

This image captures the last high fountain of the 1969-1974 Mauna Ulu eruption of Kīlauea Volcano, Hawai‘i. More images here: #MagmaMonday #history

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1 year

Ever wonder what the seafloor looks like under San Francisco Bay? Take a look! Download a free copy of the poster or order a paper copy from our USGS Store #MappingMonday #bathymetry #SanFrancisco

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5 years

#OnThisDay in 1928: #BryceCanyon officially became a #NationalPark . #OTD #Utah

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11 days

At 5:12am on April 18, 1906, a massive #earthquake shook San Francisco, CA. The earthquake ignited several fires that burned for three days and destroyed nearly 500 city blocks. Today we commemorate 118 years of #seismic discovery, research, and resilience. @USGS_Quakes

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5 years

Watch the #pnw coastline rebuild over a 6-year period after the world's largest dam removal. Still curious -->

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6 years

#Onthisday in 1906 - Devils Tower was declared America's first National Monument by President Theodore Roosevelt.

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4 years

Take-out containers piling up? Here's a distance learning activity which helps students learn about contour lines by constructing a 3D topographic map: How to Make a Topo Salad-tray Model #teacherhack #education

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7 years

M 6.1 earthquake has occurred 281km ESE of Kamaishi, Japan

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3 years

@NASAEarth @NASAEarth Here's our imaginary 1980s punk album

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4 years

Happy Birthday to Florence Bascom! (July 14, 1862) The Ph.D. geologist was the first women hired by the USGS. #OTD #womeninscience

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8 years

Born this day 1883: Karl Terzaghi, father of soil mechanics. His equations are used in #landslide research:

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4 years

Molten lava can cool quickly as glass particles called Pele's tears, named after the Hawaiian goddess of volcanoes. This one was found in Jan 2016 on the rim of Halema‘uma‘u Crater, Kīlauea. #MagmaMonday

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7 years

M7.1 earthquake south of Mexico City occurred within the subducting Cocos slab.

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3 years

Happy Birthday Rocky Mountain National Park (1/26/1915). Check out the Geology and Ecology of Rocky Mountain National Park #FindYourPark #OTD #Colorado Photo Credit National Park Service

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4 years

Today’s #saltonsea #earthquake swarm in CA raises the probability of larger earthquakes in the #sanandreas region. Medium-sized earthquakes can cause damage too; visit our aftershock forecast for more info and Drop, Cover and Hold on if you feel shaking.

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4 years

Regarding the 5.1 near Sparta, NC (3.7 km depth) and the next 1 week forecast: - M3+ is 57% chance (as few as 0, as many as 57 if sequence is re-invigorated by a larger aftershock) - M5+ is 5% chance More info:

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4 years

Sweet manatees stopping by to wish you a good morning! #ManateeAppreciationDay #WildlifeWednesday

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4 years

Friday’s #Geology101 : Textbook example of an anticline (left "arch") and syncline (right "bowl") in the same formation. Credit: Barbara Ende

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5 years

Crater Lake National Park in Oregon was established #OnThisDay in 1902. Occupying a caldera formed 7700 years ago by the collapse of Mt. Mazama, Crater Lake is the deepest lake in the United States and one of the most spectacular.

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5 years

Happy Birthday to us!! 🎂🎂Yesterday, the USGS turned 140 years young. Here is a copy of the law est. the USGS in 1879. More history here:

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5 years

Similar to the first version we posted, here’s a cleaner view with the blue dots representing the 6.4 event and aftershocks and the red dots representing the 7.1 and aftershocks. #CaliforniaEarthquake #earthquakes #usgs #science

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5 years

This video shows earthquake events a few hours before the M6.4 on July 4th, 2019 to present (as of above noon on July 8th, 2019). #earthquake #usgs #californiaearthquake

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1 year

The second earthquake in the New Madrid #earthquake sequence occurred #onthisday in 1812. The M~7.3 earthquake struck at 9:15 am local time and would be followed by a M~7.5 just two weeks later. Learn more ➡️ @USGS_Quakes #NaturalHazards #history

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9 months

A RED/WARNING has been issued for #Shishaldin Volcano in the Aleutian Arc. An explosive eruption is underway with an ash cloud up to 30,000 ft (9km) above sea level. Learn more about Shishaldin and other volcanoes in Alaska: @alaska_avo @USGSVolcanoes 🌋

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5 years

THREAD: Aftershock Forecast Updates: This forecast is based on data collected as of 7:55AM 2019-7-6 PDT According to our forecast, over the next 1 Week there is a 3 % chance of one or more aftershocks that are larger than magnitude 7.1...

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5 years

Next month marks the 39th anniversary of the eruption of #MountStHelens . Here's a great pic of the north flank 9/79 #tbt #WA

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6 years

Banded iron formation showing alternating layer of iron-rich magnetite and silica-rich chert, deposited in oceans roughly 2.5 billion yrs ago, on a vastly different Earth #Geology101

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9 years

Happy Science Fiction Day. Coast Redwoods. The forest moon of Endor or California/Oregon? http://t.co/jPLdI3YUPw http://t.co/AkJLZA5NRa

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4 years

Bees, butterflies...and #bats ! Did you know that some bats are pollinators? Almost 300 species of fruits are pollinated by bats: . #BatWeek #TriviaTuesday

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5 years

THREAD: A strong (Mw 6.4) earthquake occurred 12 km SW of Searles Valley, California on the China Lake Naval Air Center at 10:33:48 am local time on July 4, 2019. The closest big population center is the city of Ridgecrest with a population of 28k people.

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