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Geology professor talks about Montana earthquakes

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Geology professor talks about Montana earthquakes


A 4.2 magnitude earthquake struck near Great Falls on Thursday, briefly rattling residents and raising questions about why earthquakes occur in the region.

The U.S. Geological Survey confirmed that it registered as a 4.2 quake. The quake happened at 12:41 p.m., and was centered about 4.9 miles northeast of Great Falls at a depth of about 13.6 miles.

Brianna Juneau reports – watch the video here:

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Geology professor talks about Montana earthquakes

According to geologists, while earthquakes of that size are uncommon in north-central Montana, the area is far from inactive.

“Although earthquakes of that magnitude are quite rare in the Great Falls area, it’s actually a pretty seismically active region in western Montana,” said Andrew Laskowski, an associate professor of structural geology at Montana State University.

Great Falls lies near the Intermountain Seismic Belt, a geologically active zone that stretches through the western United States. Laskowski said that within this belt, scientists record an average of eight to ten earthquakes every day, though most are too small to be felt.

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What exactly causes earthquakes in Montana remains a topic of debate among geologists.

Some researchers believe seismic activity here may be influenced by tectonic plate interactions far to the west, near the Pacific Ocean and the Cascade Mountain Range.

Others point to the distant effects of California’s San Andreas Fault, while another theory focuses on differences in the structure of the Earth’s continental crust.

“In the western U.S., and in particular, we see the seismicity really focused on the mountain fronts,” Laskowski said. “Basically, the east side of the Rocky Mountains. That’s where we see changes in things like how thick the continental crust is.”

Laskowski added that resistance deep below the Earth’s surface, possibly involving the mantle beneath the crust, could also contribute to earthquake activity along those mountain fronts.

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Most earthquakes in Montana measure below a magnitude of 2.5 to 3, making them nearly imperceptible to people on the surface.

“We live in a very seismically active state, particularly in the west half of the state,” Laskowski said. “We have to be aware that there is always a risk of major earthquakes.”

Experts say earthquake risk generally increases farther west in Montana, especially near Yellowstone, one of the most seismically active regions in the country. While Thursday’s earthquake was noticeable, geologists emphasize that events of that magnitude are rare in the Great Falls area and may not occur again for several years.



EARTHQUAKES IN MONTANA

The Treasure State is in one of the most seismically active regions in the United States. The intermountain seismic belt, which runs through the western third of the state, is where most of the earthquake activity occurs in Montana. The vast majority of the many quakes across the region are very small, rarely felt by people, and cause no damage. There is a team of experts at the Yellowstone Volcano Observatory who keep track of them all; click here to visit the website.

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There is also an Earthquake Studies Office on the campus of Montana Tech in Butte. It operates the Montana Regional Seismic Network, a network of 42 permanent seismic stations located throughout western Montana. The website notes: “Although it has been over four decades since the last destructive earthquake in Montana, small earthquakes are common in the region, occurring at an average rate of 7-10 earthquakes per day.”

The website features several interactive maps, including one that shows the 2,395 earthquakes recorded in Montana during 2018 and additional earthquakes in the surrounding region. All but 23 of those quakes registered as less than 3.0, which demonstrates how small and imperceptible the vast majority are.


There have been some notable earthquakes in Montana’s history, including the 7.3 magnitude Hebgen Lake earthquake on August 17, 1959. The earthquake triggered more than 160 new geysers throughout Yellowstone National Park. There were also around 28 fatalities from a rockslide in Madison Canyon.

And on July 6, 2017, one of the strongest earthquakes to hit Montana in decades shook the community of Lincoln northwest of Helena. It was centered 5.5 miles southeast of Lincoln at a depth of about 2.6 miles. People reported feeling the 5.8 magnitude quake across Montana and the northwest, with some reports coming from as far away as Vancouver and Lethbridge, Canada. It caused some minor damage, but no serious injuries.

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In January 2026, a 4.2 quake shook several miles northeast of Great Falls; no injuries and no serious damage were reported – click here for details.

The quake happened at 12:41 p.m., and was centered about 4.9 miles northeast of Great Falls at a depth of about 13.6 miles.

MTN News was interviewing Cascade County Sheriff Jesse Slaughter (for an unrelated story) when the earthquake hit – watch the video:

Residents react as earthquake shakes Great Falls

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The plains of central and eastern Montana are much less prone to quakes, but there have been a handful of significant ones reported.

According to the USGS, a 5.3 magnitude earthquake struck northeastern Montana on May 15th, 1909.

Several smaller quakes have been recorded in Roosevelt County, including an estimated 4.5 magnitude quake in the town of Froid that resulted in some damage to a grain bin back in 1943.

Although it has been some time since the state has seen a destructive earthquake, small quakes occur several times every day. Click here to learn more about earthquake preparedness.

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In eastern Montana, Brian Miller wins Democratic primary for U.S. House • Daily Montanan

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In eastern Montana, Brian Miller wins Democratic primary for U.S. House • Daily Montanan


Brian Miller won the Democratic primary Tuesday for the U.S. House seat in Montana’s eastern district.

The Associated Press called the race for Miller, an attorney in Helena, who fended off a challenge from state Sen. Jonathan Windy Boy, a longtime legislator from Box Elder, and Sam Lux, a farrier from Great Falls.

In the Republican and rural eastern district, any Democrat will be an underdog, and Miller will face off against incumbent Republican U.S. Rep. Troy Downing, who was unopposed Tuesday.

Libertarian Patrick McCracken is also running.

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In the primary, Miller took 58% of the vote. Lux took 27% and Windy Boy took 16%, according to the Montana Secretary of State’s website.

In April, Windy Boy paused his campaign amid “serious sexual abuse” allegations raised by the Montana Democratic Party — but Windy Boy restarted his campaign and later called the allegations “political attacks.”

Miller is representing the victim of the alleged abuse and her mother, although he said he didn’t take on the role until after Windy Boy initially suspended his campaign.



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Western Montana Food and Farm launches new agritourism trail – Bitterroot Star

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Western Montana Food and Farm launches new agritourism trail – Bitterroot Star


The Western Montana Food and Farm Trail, a new agritourism initiative led by Farm Connect Montana, launches May 30, offering locals and visitors a new kind of food and farm adventure across Western Montana.

Running June 1 through October 31, the self-guided Trail spans more than 200 miles and features more than 100 farms, ranches, farmers markets, restaurants, breweries and food businesses across the Missoula, Bitterroot, Flathead and Mission Valleys. Along the way, participants are invited to meet growers and makers, taste what’s in season and experience the culture and care behind Western Montana’s local food community.

At the center of the experience is the passport-style Trail Field Guide, illustrated by Missoula-based artist Courtney Blazon. The guide features illustrated maps, curated itineraries, seasonal highlights and more than 100 local food destinations throughout the region. The guide also includes more than $130 in special offers from participating farms and businesses.

Participants can collect stamps at Trail stops along the way to qualify for prizes, giveaways, or simply as a way to document their journey. End-of-season prizes include raffles for three CSA memberships valued at over $600 each, as well as local food and farm gift certificates, product bundles and Courtney Blazon-designed market totes.

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The Trail is a regional collaboration led by Farm Connect Montana in partnership with Land to Hand Montana, The O’Hara Commons and Sustainability Center and Abundant Montana, organizations working to strengthen local food systems across Western Montana. The project aims to support local farms and food businesses through expanded visibility and agritourism opportunities while reconnecting locals and visitors with the people, places and stories behind their food.

“In creating the Western Montana Food & Farm Trail, we hope to inspire both residents and travelers to discover the stories behind their food and connect with the people cultivating a more vibrant, resilient and locally rooted food community,” said Bonnie Buckingham, Executive Director of Farm Connect Montana. “Participation in the Trail is a win for everyone. It creates new opportunities for farms and local food businesses to reach wider audiences while encouraging participants to explore new places, support local producers and experience Western Montana in a more meaningful way.”

“Land to Hand is thrilled to partner with Farm Connect on the Food and Farm Trail to highlight the robust agricultural heritage of Western Montana,” said Gretchen Boyer, Executive Director of Land to Hand Montana. “This initiative is more than just a guide – it’s an invitation to celebrate and support the local farmers who nourish our communities every day. By connecting residents and visitors directly to the source, we’re strengthening our local food system and honoring the people and landscapes that sustain the Flathead Valley.”

To celebrate the launch, regional Trail launch parties will take place in Missoula, the Bitterroot Valley and the Flathead Valley throughout early June, featuring Field Guide distribution, local food vendors, giveaways and opportunities to learn more about the Trail.

Trail Field Guides ($10) will be available for purchase beginning May 30 both online and at participating businesses, farmers markets and community locations throughout the region. A full list of Field Guide purchase locations and details, as well as a digital map and Trail listings, special events and more information is available at farmconnectmontana.org/trail.

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Funding for this project was made possible through the U.S. Department of Agriculture’s Agricultural Marketing Service.

Regional launch events
• Missoula Launch Party — LaLonde Ranch, Sun., June 7, 1-4 p.m.
• Bitterroot Launch Party — O’Hara Commons Market, Wed., June 10, 4-6 p.m.
• Flathead Launch Party — Backslope Brewing, Tue., June 16, 4-7:30 p.m.





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Tuesday is a big primary day. Here are key races to watch

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Tuesday is a big primary day. Here are key races to watch


An “I voted” sign points to a Vote Center on June 1 in Los Angeles.

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Six states — California, Iowa, Montana, New Jersey, South Dakota and New Mexico — hold elections on Tuesday. Most of the attention is on California and Iowa, where there are competitive primaries for governor. In both states, the Democratic Party also sees a road map to control of Congress in the fall.

In California’s unique primary system, voters send the top two vote-getters to November’s general election, regardless of candidates’ political parties. Democratic Gov. Gavin Newsom is term limited, and California voters will also pick who should move on to the general election in five new Democratic-leaning congressional districts.

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In Iowa, Democratic voters will choose a candidate in a key Senate race — the Republican in the race is already the de facto nominee. In order to win a majority in the Senate, Democrats must pick up four seats, forcing the party to win in Republican-leaning states like Iowa. For governor, the race is the first good chance Democrats have to win the office in years, but Republicans still need to select their nominee.

Here are key races to follow:

Or skip to specific races:

California governor | California U.S. House | Iowa governor | Iowa U.S. Senate | New Jersey and Montana

You can also check out June 2 voter resources from the NPR network.

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California decides top two gubernatorial contenders

It’s been a chaotic scramble to pick the next leader of the country’s largest state. After three prominent Democrats — former Vice President Kamala Harris, Sen. Alex Padilla and state Attorney General Rob Bonta — decided not to run, Democratic voters haven’t had a clear front-runner for the first time in decades. Voters have more than 60 candidates to choose from, but only a fraction of those are considered serious contenders. Only the top two vote-getters will move on to the general election in November.

California Democratic gubernatorial candidate Xavier Becerra hugs a supporter at the Long Beach Arena on May 31 in Long Beach, Calif.

California Democratic gubernatorial candidate Xavier Becerra hugs a supporter at the Long Beach Arena on May 31 in Long Beach, Calif.

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The race got a shakeup when former Democratic Rep. Eric Swalwell, the presumed favorite, dropped out of the race after he was accused of sexual misconduct by several women. Most recently, polls show the contest could be between two Democrats — the Health and Human Services secretary under former President Joe Biden, Xavier Becerra, and billionaire philanthropist Tom Steyer.

Before Becerra was appointed to Biden’s Cabinet, he served 12 terms in Congress and was elected as the California attorney general in 2016. He’s considered by many as the candidate with the strongest political background. Becerra’s pitch is that he is a proven leader who can hold his own and protect California from President Trump.

Steyer has forked over more than $213 million of his own fortune on the race and is also financially backed by Our Revolution, a group aligned with Sen. Bernie Sanders, I-Vt. Steyer’s platform is centered on taking a stand against special-interest groups in politics.

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Polling just a few points behind Becerra and Steyer is Republican Steve Hilton. The former Fox News host was endorsed by President Trump in April, after which Riverside County Sheriff Chad Bianco, another Republican in the race, quickly dropped in the polls. Hilton’s platform focuses on increasing affordable housing supply for first-time homebuyers, bolstering tech industries and reviving California’s film industry.

Democratic gubernatorial candidate Tom Steyer speaks with students during a Get the Youth Vote with Bruin Democrats event at UCLA's campus on June 1 in Los Angeles, Calif.

Democratic gubernatorial candidate Tom Steyer speaks with students during a Get the Youth Vote with Bruin Democrats event at UCLA’s campus on June 1 in Los Angeles, Calif.

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The outcome of California’s new congressional districts

In response to Texas redrawing its congressional lines to create five Republican-leaning districts at the behest of President Trump, Californians approved Proposition 50 in November last year. The measure temporarily sidestepped the independent redistricting commission tasked with drawing nonpartisan influenced congressional boundaries, in favor of politically gerrymandered districts. That allowed state Democrats to redraw their map so five previously Republican-held districts now lean Democratic.

This has left those Republican incumbents figuring out their political futures. Rep. Ken Calvert, the longest-serving Republican from California, and Rep. Young Kim are running in the same district, for example, in a race that’s gotten quite heated.

Then there’s Rep. Kevin Kiley. After being drawn into a much more Democratic-leaning district, he decided to run in a new seat and announced he was leaving the Republican Party and running as an independent instead, though Kiley said would still caucus with the Republicans.

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Because of California’s primary system, some of these more competitive seats are creating competitive primaries between Democrats, allowing primary voters to signal to the party what kinds of candidates speak to them most in places that have the most to lose — and gain.

Iowa’s GOP gubernatorial primary

Iowa Republican voters could decide the party’s nominee for governor in the state’s first open race for the office since 2011, as sitting Gov. Kim Reynolds opted not to run for reelection.

With five Republicans on Tuesday’s ballot, Rep. Randy Feenstra is the only one endorsed by Trump. The race will test whether Trump’s endorsement holds weight in a state where his approval rating has slipped over the economy and the war in Iran. Feenstra’s lead may be declining, as one recent poll shows political newcomer and Iowa businessman Zach Lahn could have a shot at winning the GOP primary.

There is a good chance, though, that Iowans won’t know the outcome of the race on Tuesday because a candidate must secure 35% of the vote to win outright. If no one clears that threshold, the nominee will be decided at a Republican convention where delegates — not primary voters — make the final choice.

But the Republican-backed candidate isn’t a shoo-in come November. Cook Political Report categorizes the governor’s race as a toss-up with a slight Republican advantage. Whatever Republican wins on Tuesday will face unopposed Democratic State Auditor Rob Sand in the general election. Sand is popular among voters and has, so far, outraised any other candidate for governor.

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Democrats look to flip Iowa Senate seat

Democratic voters in Iowa will pick which candidate they think has the best shot at beating the Republican nominee for Senate, expected to be Trump-endorsed Rep. Ashley Hinson, on Tuesday. This is a seat that Democrats believe they have a shot at flipping come November. It’s part of a larger strategy of expanding their map — and winning in states currently held by Republican senators — if they want a chance to retake the Senate majority.

Iowa Democrats have a choice between state Rep. Josh Turek and state Sen. Zach Wahls. Both candidates are courting different Iowa voters, though. Turek is vying for the independent-leaning vote, while Wahls is hoping to gain the support from committed Democrats. Turek flipped a state House district held by a Republican, while Wahls represents a Senate district that is solidly blue. Both argue they are the candidate who has the right message to win in November.

And with three competitive congressional races on the ballot, some Democrats in the state are feeling like the road to a Democratic majority in Congress runs through Iowa.

Looking beyond Tuesday

New Jersey and Montana also have competitive races that could decide which party has control of Congress.

In New Jersey, all eyes are on Congressional District 7. Four Democrats are hoping to oust Republican Rep. Thomas Kean Jr. The sitting congressman has been notably absent from Washington for weeks due to what Kean cites as unspecified medical issues. He has missed more than 100 House votes since his last recorded vote on March 5.

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Two races in Montana may be more competitive than originally expected with the last-minute announcements — shortly before the filing deadline — by Republicans, Sen. Steve Daines and Rep. Ryan Zinke, that neither would seek reelection.

While an open Senate seat does not make Montana, which has long been considered a Republican stronghold, necessarily competitive for Democrats, an independent candidate is outraising candidates in both major parties. Seth Bodnar, Iraq war veteran and former president of the University of Montana, is hoping voters will send him instead, mostly on the message that he won’t work for either party and is focused on changing the direction America is heading. In Bodnar’s case, he has enough voter signatures to land himself on the November ballot, but the Montana Secretary of State’s Office hasn’t yet certified those signatures.

Democrats are working to flip Montana’s 1st Congressional District as well. When Zinke announced he was retiring from Congress, it was seen as an opening for Democrats to compete. Now, four Democrats are angling for the open seat, including front-runner Sam Forstag, a smokejumper who is endorsed by popular progressive Rep. Alexandria Ocasio-Cortez, D-N.Y.

June 2 voter resources from the NPR Network

California | Iowa | Montana | New Jersey | New Mexico | South Dakota



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