Tim Dawson
@timblor.bsky.social
Earthquake Geologist in public service. Mostly posts about earthquake geology and a cat..mostly. Aspiring photographer, listening for the secret, searching for the sound
Good morning Calaveras fault! Just felt a little M4.3 earthquake that is located near Gilroy. Just slight shaking in San Francisco that interrupted me as I was sipping coffee. If you felt it, you can report it here: earthquake.usgs.gov/earthquakes/...
November 26, 2025 at 2:25 PM
Good morning Calaveras fault! Just felt a little M4.3 earthquake that is located near Gilroy. Just slight shaking in San Francisco that interrupted me as I was sipping coffee. If you felt it, you can report it here: earthquake.usgs.gov/earthquakes/...
Greenland Part 3: One of my hopes for our trip to Greenland was to see polar bears in the wild. We only saw a mother and two cubs from a great distance on the first day. It was still amazing. Here is my best grainy photo.
November 26, 2025 at 4:55 AM
Greenland Part 3: One of my hopes for our trip to Greenland was to see polar bears in the wild. We only saw a mother and two cubs from a great distance on the first day. It was still amazing. Here is my best grainy photo.
More Greenland photos, featuring some geology. Scoresbysund has some fantastic exposures of columnar basalts, which are ~55 million years old (young for Greenland rocks!) related to flood basalts when the Atlantic was opening up. Fantastical shapes and fall tundra colors
November 25, 2025 at 4:13 AM
More Greenland photos, featuring some geology. Scoresbysund has some fantastic exposures of columnar basalts, which are ~55 million years old (young for Greenland rocks!) related to flood basalts when the Atlantic was opening up. Fantastical shapes and fall tundra colors
Reposted by Tim Dawson
I swore an oath to the Constitution in 1986. I've upheld it through 25 years of service and every day since I retired.
If Trump's trying to intimidate me, it won’t work. I’ve given too much to our country to be silenced by bullies who care more about power than the Constitution.
If Trump's trying to intimidate me, it won’t work. I’ve given too much to our country to be silenced by bullies who care more about power than the Constitution.
November 24, 2025 at 8:27 PM
I swore an oath to the Constitution in 1986. I've upheld it through 25 years of service and every day since I retired.
If Trump's trying to intimidate me, it won’t work. I’ve given too much to our country to be silenced by bullies who care more about power than the Constitution.
If Trump's trying to intimidate me, it won’t work. I’ve given too much to our country to be silenced by bullies who care more about power than the Constitution.
I’ll be sharing more photos from our September trip to Greenland in the coming weeks now that I’m catching up on photos. Get ready for more icebergs, landscapes, fluffy arctic animals, and geology from the trip.
November 24, 2025 at 4:11 AM
I’ll be sharing more photos from our September trip to Greenland in the coming weeks now that I’m catching up on photos. Get ready for more icebergs, landscapes, fluffy arctic animals, and geology from the trip.
This wild turkey has a lot to say.
November 22, 2025 at 7:03 PM
This wild turkey has a lot to say.
Took a quick detour on my way home to check out the view from Yerba Buena Island as the sun was going down.
November 21, 2025 at 2:51 AM
Took a quick detour on my way home to check out the view from Yerba Buena Island as the sun was going down.
Time for more Greenland photos! I had no view of the amazing aurora borealis show this week, but got to see a decent display in September in Greenland. Ribbons of pulsating light at times. Amazing to experience.
November 16, 2025 at 4:15 AM
Time for more Greenland photos! I had no view of the amazing aurora borealis show this week, but got to see a decent display in September in Greenland. Ribbons of pulsating light at times. Amazing to experience.
There is a super-murder of crows flying by towards downtown San Francisco. This went on for minutes and probably involved more than a thousand crows.
November 15, 2025 at 1:14 AM
There is a super-murder of crows flying by towards downtown San Francisco. This went on for minutes and probably involved more than a thousand crows.
Reposted by Tim Dawson
November 12, 2025 at 4:04 PM
Reposted by Tim Dawson
NOAA cut funding for critical parts of the tsunami and earthquake detection system in Alaska, primarily in the Aleutians. I spoke to Wash Post about negative impacts. But, hey, what are the chances of a deadly tsunami being triggered in Alaska? (Gift article, not behind paywall) ⚒️ wapo.st/4qKvavQ
This lab is key for tracking deadly waves. Its sensors are about to go offline.
After NOAA cut funding to the lab that’s been monitoring seismic activity for more than 25 years, nine stations tracking tsunami-causing earthquakes for the agency will go offline by the end of the mo...
wapo.st
November 11, 2025 at 7:37 PM
NOAA cut funding for critical parts of the tsunami and earthquake detection system in Alaska, primarily in the Aleutians. I spoke to Wash Post about negative impacts. But, hey, what are the chances of a deadly tsunami being triggered in Alaska? (Gift article, not behind paywall) ⚒️ wapo.st/4qKvavQ
Just saw this rather large bobcat walk up to this flock of wild turkeys in the backyard. A lot of commotion, but I think the bobcat was reluctant to take on 15 turkeys at once.
November 11, 2025 at 6:50 PM
Just saw this rather large bobcat walk up to this flock of wild turkeys in the backyard. A lot of commotion, but I think the bobcat was reluctant to take on 15 turkeys at once.
Reposted by Tim Dawson
In the century leading up to 1975, nearly 6000 freighters went down in the Great Lakes.
The Edmund Fitzgerald was the last.
The last. In 50 years, not a single commercial freighter has been lost in the Great Lakes.
Why?
It's NOAA. Of course it's NOAA.
The Edmund Fitzgerald was the last.
The last. In 50 years, not a single commercial freighter has been lost in the Great Lakes.
Why?
It's NOAA. Of course it's NOAA.
November 11, 2025 at 1:50 AM
In the century leading up to 1975, nearly 6000 freighters went down in the Great Lakes.
The Edmund Fitzgerald was the last.
The last. In 50 years, not a single commercial freighter has been lost in the Great Lakes.
Why?
It's NOAA. Of course it's NOAA.
The Edmund Fitzgerald was the last.
The last. In 50 years, not a single commercial freighter has been lost in the Great Lakes.
Why?
It's NOAA. Of course it's NOAA.
Productive stay-cation day:
Made waffles for breakfast
Went for a hike to Sutro Forest
Did a bunch of yard work
Baked a loaf of bread
Made waffles for breakfast
Went for a hike to Sutro Forest
Did a bunch of yard work
Baked a loaf of bread
November 11, 2025 at 1:58 AM
Productive stay-cation day:
Made waffles for breakfast
Went for a hike to Sutro Forest
Did a bunch of yard work
Baked a loaf of bread
Made waffles for breakfast
Went for a hike to Sutro Forest
Did a bunch of yard work
Baked a loaf of bread
This weekly roundup is a good reminder that earthquakes happen everyday in California. While most are small, eventually there will be one that will be disruptive and, knowing this, it is best to be prepared.
Between November 3 (12:00 AM PST) and November 9 (11:59 PM) there were 50 earthquakes in California of magnitude 2.0 or larger.
🔸45 quakes between magnitude 2.0 - 2.9
🔸5 quakes between magnitude 3.0 - 3.9
The largest earthquake was a magnitude 3.8 near San Ramon, CA.
🔸45 quakes between magnitude 2.0 - 2.9
🔸5 quakes between magnitude 3.0 - 3.9
The largest earthquake was a magnitude 3.8 near San Ramon, CA.
November 10, 2025 at 8:00 PM
This weekly roundup is a good reminder that earthquakes happen everyday in California. While most are small, eventually there will be one that will be disruptive and, knowing this, it is best to be prepared.
Glad I took today off. It is 75 degrees and I’m in shorts and a tshirt. It is the San Francisco summer day I waited all summer and fall for.
November 10, 2025 at 7:56 PM
Glad I took today off. It is 75 degrees and I’m in shorts and a tshirt. It is the San Francisco summer day I waited all summer and fall for.
The San Ramon earthquake cluster seems to be dying off, but this behavior could pick up again. There isn’t a way to say for sure what is next, which is why we focus on preparedness, rather than prediction. Hopefully this pattern continues and activity continues to diminish with time.
November 10, 2025 at 1:46 AM
The San Ramon earthquake cluster seems to be dying off, but this behavior could pick up again. There isn’t a way to say for sure what is next, which is why we focus on preparedness, rather than prediction. Hopefully this pattern continues and activity continues to diminish with time.
Reposted by Tim Dawson
Quoted supporting our counterparts and friends at the Alaska Earthquake Center. The cost of the U.S. tsunami warning and mitigation effort is really a pittance. None of it has ever been adequately funded in any administration, and now things are worse. ⚒️ www.nbcnews.com/science/tsun...
U.S. tsunami warning system, reeling from funding and staffing cuts, is dealt another blow
Seismic monitoring stations in Alaska are closing after a denied federal grant, risking delayed tsunami warnings for people living on the West Coast.
www.nbcnews.com
November 9, 2025 at 7:03 PM
Quoted supporting our counterparts and friends at the Alaska Earthquake Center. The cost of the U.S. tsunami warning and mitigation effort is really a pittance. None of it has ever been adequately funded in any administration, and now things are worse. ⚒️ www.nbcnews.com/science/tsun...
I did not feel this or the M3.7 a bit later, but I was in the east bay working outside. A reminder that despite the federal government shutdown, a group of dedicated scientists at the USGS works to maintain networks that monitor earthquakes and other hazards. earthquake.usgs.gov/earthquakes/...
November 9, 2025 at 6:47 PM
I did not feel this or the M3.7 a bit later, but I was in the east bay working outside. A reminder that despite the federal government shutdown, a group of dedicated scientists at the USGS works to maintain networks that monitor earthquakes and other hazards. earthquake.usgs.gov/earthquakes/...
Two icons of San Francisco as seen from Marin this morning: The Golden Gate Bridge and @sutrotower.bsky.social
November 9, 2025 at 12:37 AM
Two icons of San Francisco as seen from Marin this morning: The Golden Gate Bridge and @sutrotower.bsky.social
Downtown San Francisco was under some low fog this morning with only the tops of rises peaking above.
November 9, 2025 at 12:07 AM
Downtown San Francisco was under some low fog this morning with only the tops of rises peaking above.
Reposted by Tim Dawson
Helping the human with her legal work — res judicata and Younger abstention are a total snoozefest.
November 8, 2025 at 4:00 PM
Helping the human with her legal work — res judicata and Younger abstention are a total snoozefest.
“When the last bolt of sunshine hits the mountain…”
November 8, 2025 at 1:06 AM
“When the last bolt of sunshine hits the mountain…”