How to Set Up Earthquake Alerts for Elderly Parents (Even If They Live Far Away)

Your parents live alone. Maybe they are in the house you grew up in, in a Bay Area suburb or a small Oregon town. Maybe they retired back to Mexico or the Philippines and you are in the US working.

They are less mobile than they used to be. They do not always answer the phone right away. And when an earthquake hits their region, you find out from the news — and then spend the next hour trying to reach them.

Here is how to set that up so you know first, not last.

Step 1: Get their exact address

Not just "their city." The actual street address, or as close as you can get. Earthquake alert apps use precise geolocation to determine which quakes are near a location. "Los Angeles" is a huge area — an app cannot tell you if a quake is close to your specific parent unless it knows where they actually live.

If they live in a rural area or overseas where street addresses are less standardized, get the nearest town and a rough GPS coordinate. Google Maps' "share location" feature works well for this. Save it in your notes.

Step 2: Set up alerts on your phone (not theirs)

Most people assume the solution is "install the app on my parents' phone." That is helpful, but it is not the primary solution. Your parents may not have their phone on them. They may be asleep. They may not react quickly to an alert on their own phone.

The better approach: you get alerted about earthquakes near their location. On your phone. So you can decide how to react — call, text, drive over, or wait.

To do this, you need an app that lets you save someone else's location and get alerts for it. Not all earthquake apps do this. Standard USGS ENS alerts by email are too slow. Native phone earthquake alerts (Apple, Google) only cover the phone's current location.

Apps like TerraSentri let you save unlimited locations — your home, your parents' home, your kids' school. You get individual push notifications for each.

Step 3: Configure the magnitude threshold that makes sense

You do not want an alert every time a M2.5 rumble happens 200 miles from their house. That is noise, not information.

Suggested thresholds:

• Distance from their home: 100-200 km (60-125 miles) is a reasonable radius
• Magnitude: M4.0+ if they are in California, M3.5+ if they are in a less-active area
• For overseas parents in high-risk countries (Philippines, Japan, Mexico), M4.5+ is a good baseline

You can always tighten thresholds later. Start broad enough that you catch anything that would affect them, but not so broad that you tune out from alert fatigue.

Step 4: Set up a check-in protocol

Alerts are step one. The real work is what you do after.

The 5-minute rule: if you get an alert about a M5.0+ near their location, text them within 5 minutes. Not "are you okay?" — that pressures them to respond quickly when they might be stressed. Just: "Saw a quake near you. Let me know when you can."

If they do not respond in 30 minutes: call. If no answer, call a neighbor if you have their number. If no answer there and the earthquake was significant (M6+), do not wait — call local emergency services for a welfare check.

Save local numbers in advance: non-emergency police, their nearest neighbor, their primary care doctor. When you actually need them, you do not want to be Googling.

Step 5: If they will use a phone, help them set up ShakeAlert

If your parents are in California, Oregon, or Washington and have a modern smartphone, ShakeAlert is already built into the operating system. On iOS, it is in Settings → Notifications → Government Alerts. On Android, it is in Settings → Safety & emergency → Earthquake alerts.

Turn these on. They give a few seconds of warning before the shaking arrives. Enough time to drop, cover, and hold on.

Walk them through it in person if you can. Screenshots do not stick with everyone.

If your parents are overseas

The setup is nearly identical but with two adjustments:

1. Use an app that covers global earthquake data. USGS FDSNWS covers the world, so any app powered by that source will work. Apps that only cover California or the US are useless for parents in the Philippines or Mexico.

2. Add local news sources. USGS may lag 5-10 minutes behind local sources like PHIVOLCS (Philippines), CENAPRED (Mexico), or JMA (Japan). If speed matters, use an app that ingests both. TerraSentri does this for Philippines specifically.

Time zones also matter. If your parents are 15 hours ahead, a M5.5 hitting their city at 2pm local time is 11pm your time. Do you want to be woken up? Configure your quiet hours accordingly, but make sure "critical" alerts (M6.0+) still get through.

The peace of mind is the point

The whole reason to set this up is not to be a hero when an earthquake happens. It is to sleep better on ordinary nights. Knowing that if something happens near your parents, your phone will tell you before the news does.

Set it up once. Test it. Then let it fade into the background. That is what good tools do.