M 3.9 near Tremonton, UT

PRESS RELEASE
University of Utah Seismograph Stations
Released: September 24, 2019 11:00 AM MDT

The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.9 occurred at 10:15 AM on September 24, 2019(MDT).  The epicenter of the shock was located north of the Great Salt Lake, 14 miles northwest of Tremonton, UT. 

This earthquake was reported felt throughout northern Utah including in the city of Tremonton and the surrounding communities.  A total of 45 earthquakes of magnitude 3.0 or greater have occurred within 16 miles of the epicenter of this event since 1962.  The largest of these events was a magnitude 4.5 on July 05, 1989, 11 miles west-southwest of Tremonton, UT.

Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey website: earthquake.usgs.gov.

Earthquake Summary:

Date (UTC):   September 24, 2019         Time (UTC):   16:15
Date (local): September 24, 2019         Time (local): 10:15 AM MDT
Latitude:     41 48.94′ N
Longitude:    112 23.38′ W
Preferred magnitude: 3.90 Ml

M 3.5 near southern boundary of Yellowstone National Park

University of Utah Seismograph Stations

Released: August 15, 2019 02:30 PM MDT


The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.5 occurred at 01:46 PM on August 15, 2019 (MDT).  The epicenter was located on the southern boundary of Yellowstone National Park,  22.2 miles southeast of West Thumb Geyser Basin and 48.7 miles northeast of Jackson, WY.  Earthquake activity in this location is not unusual.  A total of 9 earthquakes of magnitude 3.0 or greater have occurred since 1962 within 16 miles of todays earthquake.  The largest of these events was a magnitude 4.3 on August 21, 2003 located 22.5 miles south-southeast of West Thumb Geyser Basin and 44.2 miles north-northeast of Jackson, WY.

There have been no felt reports for todays earthquake at the time of this writing.  Anyone who felt the earthquake is encouraged to fill out a survey form either on the University of Utah Seismograph Stations website: www.quake.utah.edu or the U.S. Geological Surveys website: earthquake.usgs.gov.

Earthquake Summary:
Date (UTC): August 15, 2019 Time (UTC): 19:46
Date (local): August 15, 2019 Time (local): 01:46 PM MDT
Latudute: 44 7.66’ N
Longitude: 110 22.73’ W
Preferred magnitude: 3.5 Ml

2017 Annual Report

2017 Annual Report Cover Page

2017 Annual Report

I am happy to report the University of Utah Seismograph Sta- tions (UUSS) had another exciting and productive year in 2017. Thanks to all of you who support and promote our mission of reducing the risk of earthquakes in Utah through research, edu- cation, and public service.

An Mw 5.3 earthquake on Sept. 2, 2017, in southeastern Idaho reminded us that we absolutely do live in earthquake country. Thankfully, this earthquake caused little damage, but its shaking was felt throughout northern Utah, as far south as Provo. UUSS responded to the earthquake by partnering with the U.S. Geo- logical Survey and the Idaho Geological Survey to deploy a tem- porary array of seismographs in the source region. Using these data, we detected and located over 1,000 aftershocks in the two months following the mainshock. This allowed us to map out a previously unknown fault system.

UUSS also recorded enhanced seismicity in Yellowstone Na- tional Park during 2017. Between June 12 and Sept. 30, a swarm of over 2,400 earthquakes was recorded in the Maple Creek re- gion of Yellowstone. The largest event in the swarm was an Mw 4.4 earthquake on June 15 that was widely felt throughout the park. Although earthquake swarms in Yellowstone are common, this was the second longest swarm ever recorded. Yellowstone earthquake swarms are often related to the movement of fluids in the crust and usually do not portend a volcanic eruption; howev- er, it remains important to monitor them closely.

In 2017, UUSS continued working with the University of Utah team vying to host the Frontier Observatory for Research in Geo- thermal Energy (FORGE). This project is sponsored by the U. S. Dept. of Energy and aims to build a facility for developing tech- nologies related to enhanced geothermal energy production. The UUSS FORGE effort is led by Prof. Kris Pankow and is focused on quantifying the seismic hazard near the proposed FORGE site in Milford, Utah. Utah is one of two finalists for this project, and the winner will be announced in 2018.

We look forward to another exciting year in 2018. I encourage you to visit our web page at quake.utah.edu to stay up-to-date on our initiatives and products as well as to find out about the lat- est seismic activity in Utah and Yellowstone. You can also follow UUSS on Twitter with the handle @UUSSquake.

Best wishes, Keith D. Koper

M 4.5 near Bedrock, Co widely felt in Moab area.

Press Release:

Released: March 4, 2019 11:45 AM MST

The University of Utah Seismograph Stations

The University of Utah Seismograph Stations reports that a light earthquake of magnitude 4.5 occurred at 10:22 AM on March 04, 2019 (MST). The epicenter of the shock was located in Slick Rock Canyon in southwestern Colorado, 2.6 miles south-southwest of the town of Bedrock, Colorado, and 7 miles south-southeast of the town of Paradox, Colorado.
This earthquake was widely felt in southwestern Colorado and southeastern Utah, including the cities of Grand Junction, Colorado, and Moab, Utah. This earthquake was followed by an M 2.0 aftershock at 10:41 am MST. A total of 8 earthquakes of magnitude 3.0 or greater have occurred within 16 miles of the epicenter of today’s earthquake since 1962. The largest of these previous events was a magnitude 4.4 on May 27, 2000, located 2.2 miles northeast of today’s event.

Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey “Did You Feet it?” website.

M 4.0 Near Kanosh, UT

PRESS RELEASE

University of Utah Seismograph Stations

Released: February 20, 2019 01:45 AM MST

The University of Utah Seismograph Stations reports that a light earthquake of magnitude 4.0 occurred at 12:05 AM on February 20, 2019(MST). The epicenter of the shock was located in central Utah in the southwestern part of the Pavant Range, 5.3 mi south-southwest of the town of Kanosh, UT, and 18 miles southwest of the city of Fillmore. This earthquake was reported felt in the cities of Fillmore, Monroe, and Richfield, Utah. Three small aftershocks occurred within the first 45 minutes after the mainshock, all of magnitude less than 2.0.

A magnitude 3.3 earthquake occurred in the same area last Saturday
at 3:05 pm MST. A total of 28 earthquakes of magnitude 3.0 or greater have occurred within 16 miles of the epicenter of today’s event since 1962. The largest of these earthquakes was a magnitude 4.0 on February 23, 2001, located 8.2 mi southwest of Kanosh. In 1967, a magnitude 5.2 earthquake occurred 23 miles to the southeast of today’s event.

Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey “Did You Feet it?” website.

M 3.7 near Blufdale, UT

PRESS RELEASE

University of Utah Seismograph Stations Released: February 15, 2019 06:45 AM MST

The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.7 occurred at 5:09 AM on February 15, 2019 (MST).  The epicenter of the shock was located at the southern end of the Salt Lake Valley, 1.8 miles south of the town of Bluffdale, UT.

This earthquake was preceded by a magnitude 3.2 foreshock at 5:02 am and was followed by six aftershocks, all smaller than magnitude 2.

This morning’s earthquake was reported felt by more than 7,000 residents of the Salt Lake Valley and Utah Valley.  The foreshock was also reported felt.  Since 1962, five earthquakes of magnitude 3.0 or greater have occurred within 16 miles of the epicenter of today’s event.  The largest of these events was a magnitude 4.1 on March 16, 1992, located six miles west-southwest of Bluffdale, UT.

Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey “Did You Feet it?” website.

Magnitude 3.8 near Enterprise, UT

Press Release

Released: January 16, 2019 03:30 PM MST

The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.8 occurred at 03:00 PM on January 16, 2019 (MST).  The epicenter of the shock was located in southwestern Utah, 1.4 miles south of Upper Enterprise Reservoir and 10 miles SW of the town of Enterprise, UT.  A magnitude 2.8 foreshock occurred two minutes before the magnitude 3.8 earthquake.  Ten other earthquakes have occurred in this same area during the past week, ranging in magnitude from 0.8 to 2.9.  Earthquake activity in this area is not unusual.  A total of 11 earthquakes of magnitude 3.0 or greater have occurred since 1962 within 16 miles of today’s earthquakes.  The largest of these events was a magnitude 4.3 on January 15, 2016, located 12 miles WSW of the town of Enterprise.

Today’s M 3.8 earthquake was reported felt in the town of Central, UT, 14 miles NE of the epicenter, and in the town of Ivins. UT. Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey “Did You Feet it?” website.

M 3.5 north of Paragonah, Utah

PRESS RELEASE
University of Utah Seismograph Stations
Released: October 30, 2018 03:30 AM MDT

The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.5 occurred at 02:15 AM on October 30, 2018 (MDT).  The epicenter of the shock was located beneath the Black Mountains in southwestern Utah, 12 miles north of the town of Paragonah, Utah, and 13 mi SE of the town of Minersville, UT.  This earthquake was reported felt in the city of Milford, Utah.  A total of 19 earthquakes of magnitude 3 or greater have occurred within 16 miles of the epicenter of this event since 1962.  The largest of these events was a magnitude 4.6 in 1991, located in the same area as today’s magnitude 3.5 earthquake.

Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey website:
https://earthquake.usgs.gov/data/dyfi/ .

UUSS is hiring a Postdoctoral Research Associate and a Research Scientist this fall.

Postdoctoral Research Associate in Earthquake Seismology.
The successful applicant will work with UUSS faculty, staff, and students on problems related to induced seismicity. UUSS has active projects related to enhanced geothermal development, mining induced seismicity, and discrimination of explosions from earthquakes. Potential research topics include (1) discrimination of tectonic earthquakes from induced earthquakes and non-earthquake sources, (2) estimation of full moment tensors for small-to-moderate seismic events, (3) estimation of fault parameters of micro-earthquakes, (4) detection and high-resolution multi-event relocation of induced seismic sequences. While primary datasets are available from regional seismic networks, in some cases supplemental data will be generated using the University of Utah pool of over 150 three-component, short-period (5 Hz) Nodal seismometers.
The position is renewable for a second year pending acceptable progress and availability of funding. Opportunities for teaching, mentoring, and outreach will be made available for those interested in pursuing an academic track.
In addition to research, the successful applicant will be expected to serve rotations as a UUSS duty seismologist (leading the initial UUSS response to events of interest), which will periodically require 24/7 availability via cell/pager.
To apply submit a cover letter, a curriculum vitae, a statement of research interests, and contact information for three references using the following webpage: https://utah.peopleadmin.com/postings/80640. The nominal start date is January 1, 2019, although the actual start date is flexible. Review of applications will begin on October 15, 2018. Questions may be directed to UUSS Director Keith Koper (koper@seis.utah.edu) or UUSS Associate Director Kristine Pankow (pankow@seis.utah.edu).
The University of Utah Seismograph Stations (UUSS, quake.utah.edu) invites applications for a full-time staff scientist position. UUSS operates a network of approximately 250 seismic stations (with a combination of broadband, strong-motion, and short-period sensors) and 3 infrasound arrays. Together with the Department of Geology and Geophysics, UUSS also maintains an inventory of 162 three-component, 5 Hz, Nodal geophones that can be used for special studies. In operations, UUSS runs the ANSS Quake Monitoring System (AQMS) and is responsible for generating earthquake catalogs and other earthquake information products for the regions around Utah and Yellowstone National Park, as well as providing information to local stakeholders. The successful applicant will (1) help sustain and improve UUSS operational capabilities for earthquake detection, location, and characterization in the Intermountain West, and (2) work with UUSS faculty, staff, and students on related research problems. Research topics of interest include earthquake detection and location, seismic hazard analysis, discrimination of seismic sources, imaging of shallow Earth structure, seismotectonics of the Intermountain West region, mining induced seismicity, and seismicity induced by geothermal energy development. The new hire will be required to serve rotations as a UUSS duty seismologist, which will periodically require 24/7 availability via cell/pager to carry out the initial UUSS response to events of interest. A Ph.D. in seismology or a closely related field is required at the time of appointment. Other requirements include proficiency in programming and scripting languages commonly used in modern seismology, and strong communication skills. Preference will be given to applicants with experience in network or field seismology and database management. To apply submit a cover letter, a curriculum vitae, a statement of research interests, and contact information for three references using the following webpage: https://utah.peopleadmin.com/postings/81552. The nominal start date is January 1, 2019, although the actual start date is flexible. Review of applications will begin on October 15, 2018. Questions may be directed to UUSS Director Keith Koper (koper@seis.utah.edu) or UUSS Associate Director Kristine Pankow (pankow@seis.utah.edu).

M 3.8 near Cove Fort, Utah

Press Release

Released: September 12, 2018 12:50 AM MDT

The University of Utah Seismograph Stations reports that a small earthquake of magnitude 3.8 occurred at 11:34 PM on September 11, 2018 (MDT).  The epicenter of the shock was located in southwestern Utah in the southern Sevier Desert,  15 miles west-northwest of Cove Fort, UT.  This earthquake was followed by at least four aftershocks in the first hour, the largest of magnitude 2.3.  A total of 19 earthquakes of magnitude 3.0 or greater have occurred within 16 miles of the epicenter of this event since 1962.  The largest of these events was a magnitude 4.0 on February 23, 2001, 8 miles southwest of Kanosh, UT.

Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey website:
https://earthquake.usgs.gov/data/dyfi/