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Danielle Madugo

@daniellemadugo.bsky.social
1.7K followers 109 following 83 posts

I'm an EQ geologist that is happy in a trench with a fault & my family with two minerals the hubs in there with me. Born at 334.9 ppm CO2 concentration.

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Danielle Madugo @daniellemadugo.bsky.social · 02/03/2026
Looks like the San Ramon earthquake swarm just came back to life … maximum magnitude 3.3 so far.
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Danielle Madugo @daniellemadugo.bsky.social · 12/01/2026
Quite a spectacular sunset over the Golden Gate Bridge tonight; goodnight weekend
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Danielle Madugo @daniellemadugo.bsky.social · 28/12/2025
Heading down to LA to visit family for the holidays and the 5 is closed - eek! Detouring to eat dinner at Harris Ranch - first time for everything. :)
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Danielle Madugo @daniellemadugo.bsky.social · 21/12/2025
Seeing all the aftershocks come into a raspberry shake seismometer in Livermore, including a little foreshock to this most recent event
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Danielle Madugo @daniellemadugo.bsky.social · 21/12/2025
Definitively felt my tuchus wiggle on the couch and heard our house shake after this M3.9 earthquake in San Ramon. Didn’t feel the M4.0 last night at all. Wondering if the magnitude will end up higher? earthquake.usgs.gov/earthquakes/...
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Danielle Madugo @daniellemadugo.bsky.social · 13/12/2025
Friday Night Lights #sunset #goldengatebridge #mttam #sfcitylights
Orange sherbet sunset colors looking at SF with city lights visible, Golden Gate Bridge, and Mt. Tamalpais
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Danielle Madugo @daniellemadugo.bsky.social · 04/12/2025
Pretty sunset colors surround the Golden Gate at low tide
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Danielle Madugo @daniellemadugo.bsky.social · 30/11/2025
Introduce yourself with five concerts you’ve been to: Garth Brooks with Shania Twain Pink Martini Young Dubliners Eurythmics Afro Celt Sound System
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Danielle Madugo @daniellemadugo.bsky.social · 29/11/2025
WaPo has a little article about how a big meal and/or extra stress contributes to increased risk of heart attacks this time of year: www.washingtonpost.com/wellness/202...
washingtonpost.com
Why big meals can trigger heart attacks, just like stress or heavy exercise
Eating a large meal high in saturated fats, calories and processed carbohydrates may increase the risk for certain health events such as a possible heart attack.
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Zack Labe @zacklabe.com · 29/11/2025
October 2025 was the warmest October on record for the #Arctic. Arctic sea-ice extent is currently the lowest on record for late November. My newest 'climate viz of the month' summarizes some of this latest data: zacklabe.com/climate-viz-... #ClimateChange #SciComm #OpenScience #OpenData #DataViz
zacklabe.com
Climate Viz of the Month
October 2025 Hi everyone! Instead of designing a new special feature visualization, this next ‘climate viz of the month’ blog will focus on briefly summarizing the recent extremes in th…
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Dr. Wendy Bohon @drwendyrocks.bsky.social · 29/11/2025
Did you know that scientist don’t really use the Richter scale anymore? The most common magnitude scale used these days is called the “Moment Magnitude” scale. Here’s more info 🧪
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Danielle Madugo @daniellemadugo.bsky.social · 27/11/2025
Happy Thankssfhusihfsudfhd ...M4.3 Earthquake in San Juan Bautista plotted with Qfaults and historical seismicity 1984-present (Waldhauser's catalog). I wasn't planning on Shake-n-bake today!
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Danielle Madugo @daniellemadugo.bsky.social · 26/10/2025
FOP Ridgecrest! M7.1 stop today and 6 years ago with Olivine for scale. Scarp is modified by channelized rainfall but offset berm is still visible!
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Danielle Madugo @daniellemadugo.bsky.social · 16/10/2025
Did you feel the M3.1 while you were in Oakland Tim?
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Danielle Madugo @daniellemadugo.bsky.social · 16/10/2025
I did but the test EQ was in Berkeley? KCRW announced it if you happened to be listening.
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Danielle Madugo @daniellemadugo.bsky.social · 16/10/2025
Did my duty for the Great ShakeOut drill and loved that @kcrw.com reminded me to do it while I was under my table!!!
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Danielle Madugo @daniellemadugo.bsky.social · 16/10/2025
These little earthquakes in Berkeley are reminding me that the ShakeOut drill is happening in ~25 minutes!
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Danielle Madugo @daniellemadugo.bsky.social · 16/10/2025
Felt that earthquake! Very lightly though - so much that I had to check our house seismometer!
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Danielle Madugo @daniellemadugo.bsky.social · 07/10/2025
A full day of astronomical delights: moonset this morning over Mt Tam and sunset just south of Mt Tam this evening
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Danielle Madugo @daniellemadugo.bsky.social · 07/10/2025
That's terrifying!!!!! Thank goodness the bicyclist walked away; lucky. I always try and take Milvia through there rather than Shattuck. Was it at Shattuck and University?
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Danielle Madugo @daniellemadugo.bsky.social · 06/10/2025
Half moonset over Mt Tam this morning
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Danielle Madugo @daniellemadugo.bsky.social · 06/10/2025
Moonset over Mt Tam this morning
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Danielle Madugo @daniellemadugo.bsky.social · 26/09/2025
Loving weather wonks texts; the map with predicted totals would be an awesome addition to the text, but am also grateful for the link to the article in the texts.
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Danielle Madugo @daniellemadugo.bsky.social · 25/09/2025
@lastweektonight.com John, absolutely love you and your analyses - top notch and the best! But … you might want to work on your resting pause faces. Trust me when I say that my kid had to poop and I had to go support her and this is where I landed.
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Danielle Madugo @daniellemadugo.bsky.social · 22/09/2025
Temblor article: temblor.net/earthquake-i...
temblor.net
Seismic swarm hits Hayward Fault: What does it portend? - Temblor.net
One may think that these quakes are small, so why do they matter? Why should I care?
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Danielle Madugo @daniellemadugo.bsky.social · 22/09/2025
Chris modified this figure from a Temblor article which is modified from Shirzaei & Burgmann (2013) showing location of this very early morning's M4.3 earthquake in Berkeley along the Hayward fault. It looks like it happened in the zone where it goes from creeping zone to locked zone.
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Danielle Madugo @daniellemadugo.bsky.social · 22/09/2025
Agreed!!!! Yikes!!!
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Danielle Madugo @daniellemadugo.bsky.social · 22/09/2025
Seriously felt that one - woke 3/4 of us up! From our house seismograph.
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Danielle Madugo @daniellemadugo.bsky.social · 05/08/2025
I think this is a perfect question for @dieworkwear.bsky.social
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Danielle Madugo @daniellemadugo.bsky.social · 30/07/2025
Here’s the recording of the M8.0 off Kamchatka from our @raspishake.bsky.social earthquake.usgs.gov/earthquakes/...
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Danielle Madugo @daniellemadugo.bsky.social · 09/06/2025
Woo! Felt that shaker! We’ll see how early I can follow asleep now. M3.4 Pinole earthquake!
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Danielle Madugo @daniellemadugo.bsky.social · 02/06/2025
M2.4 EQ in Oakland! Didn’t feel it b/c we 🏃‍♀️🏃‍♂️ errands, so instead our house ChatGPT user (Chris) asked about energy analogies for an M2.4: 1)🐜 420 quadrillion marching ants; 2)🦍 7,900 sprinting gorillas; and 3)🐋 8.4 sprinting blue whales! 0.4=whale front or tail? Screenshot of calculations below.
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Jascha Polet @jascha.bsky.social · 02/05/2025
I quickly put together a seismicity map for the region of today’s M7.4 Drake passage #earthquake. An uncommon location for a large thrust event in a tectonically complex area. 🧪⚒️
Map of seismicity in Drake Passage
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Mark Gongloff @markgongloff.bsky.social · 02/05/2025
Donald Trump and Elon Musk have left Houston, Tampa, New York and other major cities without head meteorologists just ahead of what will be another busy hurricane season This is straight-up life-threatening malpractice (h/t @lisamjarvis.bsky.social ) www.cnn.com/2025/05/02/w...
A map of the contiguous 48 states titled:
Thirty National Weather Service offices are without a chief meteorologist
Some of these offices issue forecasts for major population centers such as New York City, Houston and Cleveland. Several are prone to hurricanes and tornadoes.
Callouts include: 
Upton, NY - Covers New York City and southern Connecticut
Tampa, FL - Hard hit by Hurricane Milton in 2024
Houston, TX - All management positions vacant
Paducah/Louisville/Jackson, KY - Nearly the whole state of Kentucky is covered by forecast areas without leadership
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Daniel Swain @weatherwest.bsky.social · 02/05/2025
People having been asking: "Are these cuts really that big of a deal? Could people really die?" And the answer is: This exact situation, during a major hurricane/flood/tornado/wildfire event, is precisely how that would happen.
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Danielle Madugo @daniellemadugo.bsky.social · 29/04/2025
This #poweroutage in the Berkeley Hills came just as we were starting to make dinner - extra terrible timing!
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Danielle Madugo @daniellemadugo.bsky.social · 11/04/2025
As a former Annapolitan, I recommend the Baltimore Aquarium if you have some time to walk around! Get there safely!
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Better Things Are Possible @internethippo.bsky.social · 03/04/2025
Ohh "America First" was a hit list
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Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy · 01/04/2025
NASA JPL ARIA project analysis of data from Copernicus Sentinel-2 optical and Sentinel-1 radar images measured the slip on the Sagaing Fault in Myanmar. Quick preliminary map. More details later. Fault ruptured about 500 km (300 miles) in the magnitude 7.7 […] [Original post on mastodon.social]
Map of Myanmar area showing sharp color change along the fault running roughly north-south. Red on west side where land moved northward.
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Robin Lacassin @rlacassin.bsky.social · 28/03/2025
USGS updated PAGER estimate. It's frightening. Zone of extreme damage is now shown elongated along Sagaing fault for >500km. 70% probability of fatalities > 10000 (~35% >100000). ⚒️ 🧪 These are probabilities, hopefully overestimated. In any case it's a massive disaster. Thoughts for the victims 💔
USGS map and diagram showing fatality probabilities and the area with extreme shaking and damage
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Robin Lacassin @rlacassin.bsky.social · 28/03/2025
Today's #earthquake near Mandalay, Myanmar, had magnitude Mw 7.7 to 7.9. Prelim. source models point to rupture duration & length of ~120s and at least 200km. It likely filled large part of seismic gap S of Sagaing (previous rupture in 1839) ⚒️ 🧪 Map from doi.org/10.1002/2013... (Wang et al.) 1/n
Map showing the segmentation of the Sagaing fault and the hypothetic historical ruptures
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Jascha Polet @jascha.bsky.social · 28/03/2025
Updated seismicity map for today’s M7.7 #earthquake in Myanmar: labeled earthquakes down to lower M (7.0) and included aftershocks located until now. Most early aftershocks appear to be located close to the mainshock epicenter. Also, apart from the one M6.4 aftershock, no M5+ (yet). 🧪⚒️
Seismicity map with aftershocks as purple squares
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Anthony Edwards @edwardsanthonyb.bsky.social · 28/03/2025
A Bay Area weather service unit that forecasts for SFO, all Hawaiian airports, California, Nevada and Pacific Ocean airspace is experiencing serious staffing shortages. The office currently employs just one meteorologist. Typically, four meteorologists work out of the FAA office in Fremont. #CAwx
sfchronicle.com
Staffing shortage puts office that forecasts weather for SFO in 'uncharted waters'
The weather service unit, collocated within the FAA office in Fremont, provides forecasts for SFO, Oakland airport, San Jose airport and Hawaiian airports.
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Danielle Madugo @daniellemadugo.bsky.social · 28/03/2025
The revised focal mechanism is RLSS. Wikipedia has a nice map with the fault sections on it and Ray thinks that is was the section that hasn’t ruptured since 1839.
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Jason "Jay" R. Patton @earthjay.bsky.social · 28/03/2025
#EarthquakeReport for M7.7 #Earthquake in #Burma Right-lateral strike-slip mechanism High intensity @USGS_Quakes models suggest triggered landslides and induced liquefaction Read 2018 report earthjay.com?p=6872 earthquake.usgs.gov/earthquakes/...
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The Fall Guy @thefallguy.bsky.social · 28/03/2025
#Thailand just hit by a very large (7.7) #earthquake at 1.26pm local time, origin Myanmar. Felt right across the country. Water in high-rise hotel pools sloshing down buildings, and the big Mahanakorn building downtown (if you know it) seen swaying back and forth. Too early for damage reports.
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Danielle Madugo @daniellemadugo.bsky.social · 28/03/2025
Ray said it is exactly where the trenches are.
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Danielle Madugo @daniellemadugo.bsky.social · 18/03/2025
Guess Dublin is really partying it up for St. Patty's Day!! Quite the shaker! M4.2 Dublin earthquake
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Danielle Madugo @daniellemadugo.bsky.social · 18/03/2025
Holy moly - just felt the M4.2 Dublin here in San Mateo!!! Shook for 5 seconds lightly!!
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Danielle Madugo @daniellemadugo.bsky.social · 01/03/2025
I learned so much today at the Taber Drilling class in the gorgeous Capay Valley; I was in awe of the breadth of experience and expertise of our presenters. Excellent program! And now I get to enjoy the tiniest sliver of the crescent moon, Venus & Jupiter setting on the flanks of Mt. Tam. #grateful
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