Emergency alerts work differently than regular notifications
Emergency alerts on iPhone are not notifications you control the same way you control messages or app alerts. Instead, they are broadcasts sent by government agencies — the National Weather Service, FEMA, and local emergency management — that reach all phones in an affected area at once. Your phone receives them whether or not you have notifications turned on for other things.
The alerts that reach you depend on your location. If you are in a flood zone when a flood warning is issued, you get that alert. If you cross into a different county, you start receiving that county's alerts instead. This is why the settings exist: to let you choose which types of alerts you want to receive, and whether you want them to make sound and vibration or arrive silently.
Most iPhones have emergency alerts turned on by default, but the settings are easy to miss because they live in a different place than regular notifications. If you have never checked, your phone may already be receiving them.
Key Takeaways
- Emergency alerts are government broadcasts that reach all phones in an area, separate from regular app notifications.
- You control whether to receive them and how they alert you — sound, vibration, or silent — through Settings > Notifications > Emergency Alerts.
- Amber Alerts (missing children) and Public Safety Alerts (immediate danger) are usually on by default, but you can turn them off individually.
- Your phone receives alerts based on your current location, not your home address, so you get local warnings wherever you are.
Where to find emergency alert settings on iPhone
Open Settings on your home screen. Scroll down and tap Notifications. At the very bottom of the Notifications screen, below all the apps, you will see a section called Government Alerts. Tap that heading to see your options.
If you do not see Government Alerts at the bottom of the Notifications screen, scroll down further — it is easy to miss because it does not have an app icon next to it like the other notification settings do. On some older iPhone models, this section may be labeled Emergency Alerts instead.
The three types of emergency alerts and how to control each one
Extreme Weather and Public Safety Alerts are warnings about floods, tornadoes, earthquakes, wildfires, and other immediate dangers. These are on by default. When you receive one, your phone will vibrate and play a loud sound, even if your phone is on silent. You can turn this alert type off entirely by toggling the switch next to it, but most people leave it on because these warnings can save your life.
Amber Alerts notify you about missing children. These also come with sound and vibration by default. You can turn Amber Alerts off if you do not want to receive them, though they are typically brief and infrequent in most areas.
Public Safety Alerts cover things like gas leaks, hazardous material spills, and other local emergencies that do not rise to the level of extreme weather. These are on by default and work the same way as weather alerts — they will interrupt your phone with sound and vibration.
Each alert type has a toggle switch next to it. If the switch is green, that alert type is on. If it is gray, it is off. You can turn any of them on or off independently. There is no way to receive an alert type silently — either it alerts you with sound and vibration, or you do not receive it at all.
What happens when you receive an emergency alert
When an alert comes in, your iPhone will make a loud, distinctive sound and vibrate repeatedly, even if your phone is set to silent mode or Do Not Disturb. The alert appears as a full-screen banner with a red or blue background, depending on the alert type. You can read the message, tap a button to dismiss it, or tap a link to get more information.
The alert will stay on your screen for several seconds. You do not have to do anything — it will disappear on its own. If you dismiss it, the message is saved in your Notifications Center, where you can read it again later by swiping down from the top of the screen and scrolling to the Notifications tab.
Emergency alerts do not use your cellular data or internet connection. They are broadcast directly to your phone's emergency alert receiver, which is built into the hardware. This means you can receive them even if your phone has no signal, as long as you are in range of a cell tower.
Why your iPhone might not be receiving alerts
If you are not receiving emergency alerts and you think you should be, check three things. First, go back to Settings > Notifications > Government Alerts and make sure the alert types you expect are toggled on. Second, check that you are actually in the area where an alert was issued — alerts are location-based, so you will only receive them if you are physically present in the warning zone. Third, make sure your phone has at least one bar of cellular signal; alerts cannot reach you without any connection to a cell tower.
If all three of those are true and you still are not receiving alerts, your phone may have a hardware issue with its emergency alert receiver. This is rare, but it can happen on older or damaged phones. There is no software fix for this — you would need to contact Apple Support or visit an Apple Store to have the hardware checked.
Emergency alerts and location services
Emergency alerts do not require Location Services to be turned on. Your phone receives them based on which cell tower it is connected to, not based on GPS or location data. This means you will receive local alerts even if you have Location Services disabled for privacy reasons.
However, some emergency management agencies use location data to send more targeted alerts — for example, an evacuation order for a specific neighborhood rather than an entire county. If you want to receive these more precise alerts, Location Services should be on. You can check this in Settings > Privacy > Location Services. If you turn Location Services on just for emergency alerts, you can toggle it back off afterward without affecting your ability to receive basic emergency broadcasts.
Testing your emergency alert settings
You cannot test emergency alerts yourself through the iPhone settings. Apple does not provide a way to send yourself a test alert. However, the National Weather Service and FEMA periodically send test alerts to all phones in the United States, usually on the first Wednesday of each month at 2:18 p.m. Eastern Time. These test alerts will reach your phone the same way real alerts do, so if you receive a test alert, you know your settings are working.
If you miss a test alert or want to verify your settings are correct, you can check the National Weather Service website for your area to see when the next test is scheduled. You can also contact your local emergency management office if you have questions about whether your phone should be receiving alerts in your area.
Frequently Asked Questions
Can I get emergency alerts without sound and vibration?
No. On iPhone, emergency alerts either come through with full sound and vibration, or you do not receive them at all. There is no silent or vibration-only option. If you turn off an alert type, you will not receive it under any circumstances.
Will emergency alerts work if my phone is in Do Not Disturb mode?
Yes. Emergency alerts override Do Not Disturb, silent mode, and Focus modes. They will make sound and vibrate no matter what other settings you have enabled. This is intentional — the system is designed so you cannot accidentally miss a life-threatening warning.
Do I need a data plan to receive emergency alerts?
No. Emergency alerts use a separate broadcast system that does not require data, internet, or even an active phone plan. As long as your phone can connect to a cell tower, it can receive alerts.
What if I am traveling outside the United States?
Emergency alert systems vary by country. Some countries have similar systems, but others do not. When you travel internationally, your phone will receive alerts based on the local system in that country, if one exists. Check with your carrier or local authorities to understand what alerts are available where you are traveling.
Can I turn off all emergency alerts at once?
You can turn off each alert type individually by toggling the switches in Settings > Notifications > Government Alerts, but there is no master switch to disable all emergency alerts at once. You would need to turn off each type separately if you wanted to stop receiving them entirely.