2019 Ridgecrest Earthquake Sequence: An Independence Day California Won't Forget
Earthquake!
On July 4, 2019, a magnitude 6.4 earthquake struck near Ridgecrest, a town in California's Mojave Desert. Thirty-four hours later, a magnitude 7.1 earthquake hit the same area – the largest to strike California in 20 years. Shaking was felt across California, Arizona, and Nevada. The earthquakes killed one person, injured 25, and caused surface ruptures stretching 30 miles with ground displacement exceeding six feet. Total damage exceeded $5.3 billion. Learn about the impact of the Ridgecrest earthquakes and how they became a case study for understanding earthquake cascades and stress...
info_outline
1925 Santa Barbara Earthquake: How They Rebuilt with Safety and Style
Earthquake!
On June 29, 1925, at 6:44 a.m., a magnitude 6.8 earthquake struck Santa Barbara, California, killing 13 people and damaging 85% of its downtown buildings. Three brave and quick-thinking utility workers immediately cut power and gas to the entire city, preventing widespread fires, saving lives, and shielding Santa Barbara from further destruction. This gave engineers and seismologists a rare laboratory for studying seismic damage without fire obscuring the destruction patterns. What they learned led Santa Barbara to adopt comprehensive seismic building codes. But the city didn’t just...
info_outline
QuakeFeed v6.5.5 Update + Safety Tips
Earthquake!
A quick update from QuakeFeed HQ! Here's what we've been working on: “On This Day in Earthquake History” — now available as Substack posts and podcast episodes. QuakeFeed v6.5.5 is out now! This update includes links to our "On This Day" Substack and podcast content. Preparing for Apple's "Liquid Glass" — a major iOS redesign is coming in September 2025. Plus: A a few quick safety reminders to help you stay prepared. ⏱️ Timestamps INTRODUCTION 00:00 – Welcome 00:10 – What's in this episode NEW CONTENT FROM QUAKEFEED 00:25 – Relaunch of QuakeFeed Podcast 01:02 –...
info_outline
Dad Jokes for Father's Day (Earthquake Edition)
Earthquake!
Join Linda, James, and Sequoya as they honor dads everywhere with earthquake-themed dad jokes – we're talking truly groan-worthy puns about tectonic plates, fault lines, and confused pets trying to figure out earthquake drills. This special Father's Day episode pays tribute to James's late father, a legendary math teacher and swim coach who brought humor into everything he did. For a limited time, we've also replaced the ads in QuakeFeed's earthquake list with these same dad jokes – and many more! Because while earthquakes are serious business, your earthquake app doesn't have to feel...
info_outline
From Quiet Mountain to Cataclysm: The 1980 Eruption of Mount St. Helens
Earthquake!
Hosts Linda and Sequoya explore the catastrophic 1980 eruption of Mount St. Helens through the contrasting stories of two men: 83-year-old lodge owner Harry R. Truman, who stubbornly refused evacuation despite repeated warnings, and 30-year-old volcanologist David A. Johnston, whose final radio transmission—"Vancouver! Vancouver! This is it!"—immortalized his ultimate sacrifice for public safety. Through vivid storytelling, the podcast chronicles the dramatic sequence of events from the first warning signs to the fateful morning of May 18, 1980, when a magnitude 5.1 earthquake triggered...
info_outline
Plate Tectonics (part 1)
Earthquake!
We exhaust our repertoire of tectonic plate jokes while introducing the following topics: the earth’s layers, what are tectonic plates, three types of plate boundaries, plate boundaries vs faults, and how earthquakes happen. This is a brief overview to lay the groundwork. (… pun intended!) Future episodes will dive deeper. INTERACTIVE LESSON We explain how to use the QuakeFeed app to locate plate boundaries and faults on the Quake Map. ASK THE SCIENCE KID We answer an interesting question about earthquakes in Antarctica. Our goal is to inspire CURIOSITY! We hope you and your family enjoy...
info_outline
UPDATE: QuakeFeed v5.1.0 (with Wildfires!)
Earthquake!
*NOT A FULL EPISODE* Just a quick announcement about QuakeFeed v5.1.0, available now in the App Store. This update adds three new features: USA Wildfires, Map Legend, and Aftershock Forecasts. The USA Wildfires data layer requires a QuakeFeed Premium subscription. While viewing the map, tap on a wildfire symbol to view detailed information, such as: acres burned, percent contained, how many buildings were destroyed, how many firefighters are fighting it, etc. The Map Legend and Aftershock Forecasts features are included in the free / ad-supported version. You will find the Map Legend button in...
info_outline
Drop, Cover, Hold On!
Earthquake!
You’ll laugh, you’ll cry, you’ll learn how to protect yourself in an earthquake! When the shaking starts, what should you do? We use a bit of humor to help you remember that Drop, Cover and Hold On reduces your chance of injury in an earthquake. We also dispel some common myths about earthquake safety. We hope you enjoy. Stay safe! Links for more learning: Drop, Cover, Hold On | Shakeout.org EARTHQUAKE SAFETY VIDEO SERIES If You're Near a Sturdy Desk or Table If There's NO Sturdy Desk or Table If You're in Bed If You Have a Mobility Disability LA Story earthquake scene...
info_outline
A Trip Down Market Street
Earthquake!
Linda and Sequoya travel through time to April 14, 1906 and visit San Francisco. They ride a cable car down Market Street and see a bustling, prosperous city. Next, they travel forward four days and witness the 1906 San Francisco Earthquake. The devastating M7.9 quake and the fire that followed took 3,000 lives and destroyed 80% of the city. It also marked the dawn of modern scientific earthquake research in the United States. If you’re curious to learn more, explore the links below. A trip down Market Street before the fire A Trip Down Market Street, 1906 - 4k, Colorized, 60fps ...
info_outline
Trailer: Earthquake!
Earthquake!
Coming soon, a new podcast about earthquake science and safety. Are you curious about what causes the earth to shake? Do you know how to stay safe when it does? Join us to learn the answers to these questions and more. We'll also share interesting stories about historical earthquakes and discuss notable quakes that happened recently.
info_outline*NOT A FULL EPISODE* Just a quick announcement about QuakeFeed v5.1.0, available now in the App Store. This update adds three new features: USA Wildfires, Map Legend, and Aftershock Forecasts.
The USA Wildfires data layer requires a QuakeFeed Premium subscription. While viewing the map, tap on a wildfire symbol to view detailed information, such as: acres burned, percent contained, how many buildings were destroyed, how many firefighters are fighting it, etc.
The Map Legend and Aftershock Forecasts features are included in the free / ad-supported version. You will find the Map Legend button in the top right corner of the map. The USGS Aftershock Forecasts are linked in Quake Details. NOTE: The USGS only publishes aftershock forecasts for larger earthquakes. These quakes will include the words “Aftershock Forecast” in the Quake List, to let you know that it is available.
Next month, we will add more more wildfire features to QuakeFeed Premium, such as wildfire alerts and a wildfire list view.
We hope to get back to full podcast episodes soon. We have been coping with a family medical emergency for the past several months. Thank you for your patience and understanding.
We hope you enjoy QuakeFeed v5.1.0. If you have any questions, concerns, or feedback, please tap the ? in the top right corner of QuakeFeed then tap Ask to send us a support email.