MyShake

Had there been a magnitude 5.9 earthquake in Nevada, you might have felt shaking. Here is the 'Did you feel it map?' from the 2024 M5.7 Nevada earthquake that happened last year: earthquake.usgs.gov/earthquakes/.... Keep in mind that we send alerts to the areas expected to experience Intensity 3+.

This system has delivered more than 170 real alerts since 2019 and this incident is both unprecedented and rare. Fortunately, there was no danger this morning, but this serves as a reminder that earthquake preparedness is essential.

Today at 8:06 AM, MyShake distributed an alert for a M5.9 event in Lyon County, NV. This was a false alert by the #ShakeAlert system and this is currently being investigated.

Interested in learning more? Follow MyShake on Instagram, X, and TikTok for updates @myshakeapp

It warns app users from California to Washington. So far, it has alerted for 170 earthquakes and has been downloaded by more than 4 million users.

It uses the @ShakeAlert EEW system, which detects the earthquake and then estimates where and how strong the shaking will be. MyShake sends alerts to areas where strong shaking is expected.

MyShake delivers EEW (earthquake early warning) alerts, giving you a few seconds of warning before shaking starts. It’s supported by @Cal_OES and is the official EEW app for California.

People often ask: “How does MyShake work?” Let’s break it down in this thread 🧵

Map of alerted region

Hello MyShakers, a M4.1 #earthquake occurred today at 9:54am PT near Templeton, CA. MyShake distributed an alert for this earthquake because the estimated magnitude exceeded M4.5. The map below shows the alerted region.

Whenever you feel shaking or get an alert, remember to Drop, Cover and Hold On.

Yes! Please follow the directions here: myshake.berkeley.edu/FAQ_en.html#... and copy/paste all debug text in an email to myshake-info@berkeley.edu

In that case, you definitely should have gotten an alert in addition to the notification- you can send us your debug info by following the directions here: myshake.berkeley.edu/FAQ_en.html#.... That might help us figure out what happened.

Hi ari, earthquake alerts are critical emergency alerts such that they go through do-not-disturb/silent settings. Alerts will have audio telling you to "Drop, Cover, and Hold On". If you felt the earthquake and didn't get an alert, you might have been outside the alerting region/MMI 3 contour

MMI contours for M4.3 earthquake

Hi Mike, alerts are critical and high priority such that they punch through silent mode and do-not-disturb. Your location (or last transmitted location) might have been outside of the alerting area which is the MMI 3 zone in the attached image. Contact us at myshake-info@berkeley.edu if not.

Hi Pinole Community Radio, if you are very close to the epicenter, the earthquake shaking will get to you before the alert does. The current earthquake location sets it by Oakland/Berkeley so if you were in Pinole at the time, it's likely some other reason- possibly cell service.

Hi there, send us an email at myshake-info@berkeley.edu. You'll get directions on sending us debug info- the debug info is the best way for us to determine what might have happened.

Hello MyShake users, a M4.6 #earthquake occurred today at 2:56am PT in Oakland, CA. MyShake successfully distributed an alert to our users in the region where felt shaking was expected. Remember to drop, cover, and hold on when you receive an alert or feel shaking.

Hello MyShake users, a M4.4 #earthquake occurred today at 09:32am Pacific time near Muscoy, CA . MyShake distributed an alert for this earthquake because the estimated magnitude exceeded M4.5. Whenever you feel shaking or get an alert, remember to Drop, Cover and Hold On.

Hello MyShake users, a M4.6 #earthquake occurred today at 7:37pm Pacific time near Deep Springs, CA. MyShake successfully distributed an alert to our users in the region where felt shaking was expected. Remember to drop, cover, and hold on when you receive an alert or feel shaking.

Yes! While magnitude and location are being determined, the earthquake is still happening. This only takes a few seconds, but the farther you are, the more time you have before the stronger shaking arrives and the more warning you will have as well.

Sorry about that! The closer you are to the epicenter, the more difficult it is to send an alert before strong shaking reaches you. Hopefully, you remembered to Drop, Cover, and Hold on!

Hi Greg, it could be your map filter settings. Try going to filters and adjusting the magnitude/time scale. If you aren't seeing any earthquakes at all on the map even for low magnitudes, send us a message at myshake-info@berkeley.edu and we'll get back to you.

MyShake - Apps on Google Play Get earthquake early warning alerts in California, Oregon and Washington!

A M5.2 #earthquake occurred today (04/14) at 10:08am near Julian, CA. MyShake distributed an alert for this earthquake. Download for Android tinyurl.com/3j5s8uek or for iOS tinyurl.com/5e49p53d Didn't get the alert or have other questions? email us at myshake-info@berkeley.edu

Good day, MyShakers. Residents near Orcas, WA may have felt the 4.5 magnitude earthquake at 5:02 AM today. MyShake sent an alert to users in the affected area (see map).

Remember to Drop, Cover, and Hold On when alerted or if you feel shaking.

Email questions/comments to myshake-info@berkeley.edu.

We're sorry to hear that. The information on our app updates as information from the USGS comes in so sometimes there can be delays as the parameters behind the earthquake (magnitude, location, depth) change. It should definitely be there now- try changing the filters if it's not on the map.

Hello and Happy New Year! A M4.7 #earthquake occurred at 6:34pm Pacific time near Cobb, CA. MyShake successfully distributed an alert to our users in the region where felt shaking was expected. Remember to drop, cover, and hold on when you receive an alert or feel shaking.
@caloes.bsky.social

Map showing the alerted area

More activity in the Mendocino fault zone. A M5.2 #earthquake occurred last night at 11:22pm Pacific time near Petrolia, CA. MyShake successfully distributed an alert to our users. Please remember to Drop, Cover, and Hold On if you receive an alert or if you feel shaking. @caloes.bsky.social

Map showing the alert region

Hello everybody, seems it is Nevada's turn to rumble. A M5.5 #earthquake occurred today at 3:08pm near Yerington, NV. MyShake successfully distributed an alert to our users in CA. Please see below, the map showing the expected shaking area and the area in CA that was alerted.

@caloes.bsky.social