Our expanded landslide detection system (https://bit.ly/4nPNDoJ) caught a pair of landslides east of Talkeetna. 1st detection 🔎 Sept. 17 9:46 am; each large enough to fill 400 pools. Are you a pilot who happened to fly through the area and took photos? We'd love to hear from you! [email protected]

We have reviewed a magnitude 5.6 earthquake that occurred at 1:30 am, 12 miles deep and 76 miles SW of Adak. No reports of this event being felt have been received at this time. For more info, and to submit a “Did You Feel It” report, please go to earthquake.alaska.edu/event/025c4r...

If you are in the Mat-Su area, come see us today (Sept. 20), 10 am - 3 pm, at the annual Emergency Preparedness Expo (Menard Sports Complex). We'll be giving a presentation at 11 am (Classroom 2 - Fireweed) on what Earthquake Early Warning is and how it could help Alaska residents.

It's #FieldworkFriday! Our fantastic field team did their annual checks of seismic stations along the Trans Alaska Pipeline System, one of our long-standing partnerships - going strong since 2004! The team's road trip headed all the way up to Prudhoe Bay, inspecting 6 of the northern pump stations.

Tsunami warning for Alaska is canceled

The National Tsunami Warning Center has issued a tsunami Advisory which includes the coastal areas of Alaska from Amchitka Pass, Alaska (125 miles W of Adak) to Attu, Alaska. This is based on the M7.8 earthquake offshore of Kamchatka. Find updates and details at tsunami.gov.

Come see us this Saturday at the 17th annual Emergency Preparedness Expo! We'll be talking about earthquake early warning.

We have reviewed a M4.6 earthquake that occurred at 10:35 pm, 7 miles deep and 73 miles SE of Old Harbor. No reports of this event being felt have been received at this time. For more info, and to submit a “Did You Feel It” report, please go to earthquake.alaska.edu/event/025by3....

What would YOU do with 10 seconds of warning before strong earthquake shaking? This radio segment (4 min) is worth a listen! Learn more about the potential of earthquake early warning for Alaska. https://bit.ly/3VODexg

It's #FieldWorkFriday! We briefly visit with graduate students Sebin and Cade as they prep for field testing of Fairfield seismic nodes in a dense seismic array. Stay tuned for some outcomes from the field!

What’s Shaking Alaska?! Over the past week, the Alaska Earthquake Center recorded about 350 seismic events. The largest was a magnitude 6 on September 3rd, in the western Aleutians, and 3 events were reported as felt. https://earthquake.alaska.edu/AEC-radio

We have reviewed a magnitude 5.1 event at 12:40 PM, 14 miles deep and 50miles SW of Nikolski. No felt reports have been received at this time. For more information, or to submit a felt report, please visit earthquake.alaska.edu/event/025bg4...

We have reviewed a magnitude 4.9 event at 10:25 PM, 12 miles deep and 87 miles SE of Sand Point. No reports of this event being felt have ben received at this time. For more information, or to submit a felt report, please visit earthquake.alaska.edu/event/025bfw...

It's #FieldworkFriday! Station KNK is part of our expanded landslide detection program. Starting Aug. 29, we caught a series of landslides near Harvard Glacier. The biggest (lat/long 61.35, -147.35) was about 1-4 million cubic meters. Waveforms on many stations indicate it was a large landslide.

We have reviewed a magnitude 4.1 event at 9:40 AM this morning, located 63 miles deep and 12 miles SW of Akutan. No reports of this being felt have been received at this time. For more information, or to submit a felt report, please visit earthquake.alaska.edu/event/025bef...

We have reviewed a magnitude 4.6 event at 11:54 AM, located 9 miles deep and 52 miles SW of Nikolski. This event was reported felt in Nikolski. For more information, or to submit a felt report, please visit earthquake.alaska.edu/event/025bct...

Natasha Kozyreva, treasured Alaska Earthquake Center family member, passed away on August 30th. She leaves an enduring legacy. Researchers using our catalog are working with data shaped by Natasha’s careful hand. Read more about her: https://earthquake.alaska.edu/staff-spotlight-natasha-kozyreva

We have reviewed a magnitude 2.6 event at 8:34 PM last night, located 3 miles deep and 21 miles SW of Talkeetna. This event was reported felt by a few folks between Willow and Talkeetna. For more information, or to submit a felt report, please visit us at earthquake.alaska.edu/event/025bck...

We have reviewed a magnitude 4.7 earthquake, which occurred at 11:01 AM, located 16 miles deep and 51 miles SW of Nikolski. No reports of this event being felt have been received at this time. For more information, or to submit a felt report, please visit earthquake.alaska.edu/event/025bct...

We have reviewed a magnitude 4.1 earthquake, which occurred at 4:29 PM and was located SW of Nikolski at about 14 miles deep. This event was not reported felt. For more information on this event, please visit us at earthquake.alaska.edu/event/025bch...

What’s Shaking Alaska?! Welcome to your seismic update from across the state for the week of September 3. Last week, Earthquake Center staff were at the Southeast Alaska Tsunami and Seismic Hazards Workshop in Ketchikan. Listen to these important takeaways about preparedness: https://bit.ly/46rx6jN

We have reviewed a magnitude 5.4 event at 12:57 PM, 8 miles deep and 58 miles SW of Nikolski. This event was felt in Nikolski. For more information, or to submit a felt report, please visit earthquake.alaska.edu/event/025bb6...

We have reviewed a magnitude 2.5 event at 10:37 PM last night, 16 miles deep and 6 miles NW of Eagle River. This event was felt in Eagle River. For more information, or to submit a felt report, please visit earthquake.alaska.edu/event/025bax...

We have reviewed 2 events offshore of Kodiak Island: a M4.2 at 11:09 am, 7 miles deep & 83 miles SSE of Old Harbor, & a M4.4 at 11:18 am, 6 miles deep & 88 miles SSE of Old Harbor. For more info please go to earthquake.alaska.edu/event/025b7u... earthquake.alaska.edu/event/025b7u...

We have reviewed a M5.0 earthquake that occurred at at 3:02 AM, 12 miles deep and 81 miles SE of Old Harbor. There have been 6 aftershocks above M3.0 as of 4am AK time. For more information, and to submit a DYFI report please go to earthquake.alaska.edu/event/025b7p...

Happy #FieldworkFriday! Kudos to our field team for bringing two key stations back online: SPIA on St. Paul Island and DCPH in the Deception Hills. 🙌 SPIA helps locate quakes along the Aleutians and offshore of western Alaska. DCPH fills one of the largest gaps in our network along Alaska's coast.

We have reviewed a magnitude 5.5 earthquake that occurred at 1:14 am, 48 miles deep and 25 miles ENE of Amchitka. No reports of this event being felt have been received at this time. For more info, and to submit a DYFI report, please go to earthquake.alaska.edu/event/025b2p...

Knowing what an earthquake early warning (EEW) system is capable of is a critical first step in making it work for Alaska. When a large earthquake starts, an EEW system assesses data within seconds and sends an alert, providing critical time for people and infrastructure to take safety actions.

What’s Shaking Alaska?! Over the past week, we recorded about 420 seismic events. 4 were reported as felt. The largest earthquake was a magnitude 4.9 south of Sand Point—an aftershock of the July 16 magnitude 7.3 earthquake.

We have reviewed a magnitude 5.8 earthquake that occurred at 3:07 am, 84 miles deep and 47 miles NE of Amchitka. No reports of this event being felt have been received at this time. For more info, and to submit a DYFI report, please go to earthquake.alaska.edu/event/025b13...

We have reviewed a magnitude 4.9 earthquake that occurred at 12:03 AM AKDT about 57 miles south of Sand Point, at a depth of about 11 miles (17 km). No reports of this event being felt have been received at this time Visit the event page here: https://earthquake.alaska.edu/event/025axqot5v

We just reviewed a magnitude 3.4 earthquake that occurred at 9:28 PM AKDT about 35 miles east of Denali Park, at a depth of about 4.5 miles (7 km). This event was reported as felt in Cantwell and Fairbanks. For more information visit the event page: https://earthquake.alaska.edu/event/025aw1if9v

We just reviewed a magnitude 2.8 earthquake that occurred at 7:18 AM AKDT about 11 miles north of Elmendorf AFB, at a depth of about 16 miles (25 km). This event was felt in Anchorage, Chugiak, and Palmer. For more information visit the event page: https://earthquake.alaska.edu/event/025aswbxpg

It's #FieldworkFriday! Director of Operations Austin Holland joined the team working from Cordova this week, his first stint at helicopter fieldwork. Constant extreme winds at BARK ripped off the radio antenna. The team tucked a new antenna inside the hut & fixed the wall. BARK is back!

Learn more about the Tracy Arm landslide on our Significant Event page at https://earthquake.alaska.edu/event/025a7d7cil/detail

A striking increase in earthquake activity near the landslide started >1 day before the slope failed. Thousands of small magnitude earthquakes steadily increased in frequency to a near constant just before the event. Studying clear precursor sequences like this one could help us in early detection.

The Tracy Arm landslide in Southeast AK was potentially the largest in AK in a decade, triggering a local tsunami that stripped vegetation off islands and mountainsides dozens of miles away. AEC scientists continue to sift through data to uncover details about seismic precursors to the landslide.

Over the past week, we recorded 360 seismic events. 4 were reported as felt. The largest earthquakes were both magnitude 4.7 on August 14th—one near Yunaska Island, and the other just north of Westdahl Peak, both in the Aleutian Islands.

What’s Shaking Alaska?! Each week we report on a seismic roundup from the state, as well as a scientific snippet about an interesting event. This week we talk about precursors to the Tracy Arm landslide. 🪨 ⛰️🔍. You can find our radio segment 🗣️ here: https://earthquake.alaska.edu/AEC-radio

We are live on BlueSky! The Alaska Earthquake Center (AEC) tracks earthquakes 🌎, landslides 🪨, explosions 💥, icequakes 🏔️, tsunamis 🌊, volcanoes 🌋, and more 🔍 🧪 ⚒️, advancing Alaska's resilience to earthquakes through monitoring, research, and public engagement. ✍️ 🗣️