# Temblor — Check Your Risk

> Personalized earthquake risk assessment and global seismic activity monitoring. (iPhone/iPad app by Temblor, Inc..)

- Source: https://appshunter.io/ios/app/temblor/id879904452 (this page in markdown: same URL + `.md`)
- Developer: [Temblor, Inc.](https://appshunter.io/developer/950124291)
- Category: News, Reference
- Price: Free with in-app purchases
- Rating: 3.83/5 from 12 App Store ratings · 38 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 16 MB
- Languages: English
- Released: 2014-06-15
- Data updated: 2026-07-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/temblor/id879904452/reviews.md

## What is Temblor?

Temblor gives individuals the tools to understand their personal earthquake risk.
 
Temblor provides free individualized earthquake risk information to the public. It’s the same basic info that we license to the insurance industry — the difference being volume of locations and depth of the analysis. This distinguishes us from other risk model vendors (e.g., RMS, AIR, CoreLogic), which are closed to the public.
 
“Impressive Earthquake App. Way more here than the other 'earthquake apps.'” — J.D.
 
 
Check your risk
 
Under the “Your Risk” tab, enter your home address (or a city, state or geographic landmark) or find your location and instantly see the earthquake magnitude that location is likely to experience in your lifetime. Use the map layers to explore various hazards including shaking, liquefaction susceptibility, wildfire hazard and more (depending on location). 
 
Check your risk everywhere on Earth.
 
Pan and zoom to view all recent earthquakes anywhere on the planet. Temblor merges earthquake catalogs from the major seismic agencies around the world into one real-time display of global earthquakes in the past 24 hours, 2 days, 7 days or 30 days. 
 
View faults throughout the world or in your backyard.
 
 
Quake Alerts
 
Temblor will send you a notification when an earthquake strikes near your location. This is NOT an earthquake early warning and is not intended to inform you of impending shaking. Various agencies around the world distribute early earthquake warnings to earthquake-prone regions. We encourage you to seek out your local agency to receive such alerts. 
 
 
Temblor Earthquake News
 
“Articles” brings you to Temblor Earthquake News, a news platform dedicated to earthquake reporting. Temblor’s mission is to provide the public with accurate, accessible, and understandable information about earthquakes. Read breaking news about major earthquakes, post-quake analyses and the latest developments in earthquake science in easy-to-understand language.
 
Following major or particularly notable quakes, Temblor rapidly publishes accurate post-event analyses to inform the public and support institutional and commercial responses. Temblor is an approved Google News source and has been cited in major news outlets.

## Key features

- Personalized earthquake risk assessment
- Global earthquake monitoring
- Real-time quake notifications
- Hazard map layers (shaking, liquefaction)
- Earthquake news and analysis
- View global fault lines

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock Additional Notification Criteria and Remove Ad's | $0.99 | one-time |


## Recent user reviews (10 of 38)

All indexed reviews: https://appshunter.io/ios/app/temblor/id879904452/reviews.md

### 5/5 — It is so cool

*2026-03-26, version 4.2.0*

Wow! This app is so cool! Users can know all the faults around the world! It is really amazing app!

### 3/5 — only will show my risk factor

*2022-09-25, version 4.2.0*

How do I get it to show me Local earthquakes?

### 1/5 — App doesn’t work

*2022-04-16, version 4.1.0*

It asks for your phone number to recieve a verification code, but once you do, it asks to update the app and won’t text me the code. Complete waste of time and might potentially be stealing your personal info!

### 1/5 — Does not have functionality as shown in preview

*2021-12-11, version 4.1.0*

Version 4.1.0 and website - I cannot get anything other than different versions of risk maps. No way to access the individual building risk assessment screen as shown in the first iOS App Store preview screenshot.
Very suspicious as other reviewers have complained about this for years, yet not addressed!

### 1/5 — Why app requires your phone number?

*2021-02-22, version 4.0*

There is absolutely no need for this app to require your phone number. Delete!

### 1/5 — Super delayed earthquake info

*2021-01-17, version 4.0*

So I’m sitting here eating and there is a quake, we go outside, our neighbors felt it too. No push notification message from Temblor. So I manually launch Temblor and scroll to my area on the map, nothing is showing and no recent quakes in this hemisphere on in the list. So I give up on Temblor and go to usgs.gov and enter an “did you feel it” earthquake report. A few minutes after I finish my report I get the Temblor notice. What good is that?

### 2/5 — Mark

*2020-10-04, version 4.0*

Sorry fed up now with reporting it map has stop working on mine and fed up uninstalled then reinstalled it for it still not to work have reported it to you but no feedback as to why this happens was alright for the couple days it worked .

### 1/5 — Worst privacy policy of any app I’ve yet seen

*2020-06-24, version 4.0*

There is ZERO reason I should or would give my phone number to a company I don’t know and that has nothing to do with telephony. In fact, there’s no reason at all to require signup for this app in the first place. On reading the privacy policy, the company has the right to give your phone number to any third-party business for any reason, including “to sell products or services to you”. I already get enough spam calls and texts, thanks.

### 1/5 — Been using it for years.  No more due to privacy.

*2020-03-22, version 4.0*

The app now requires you to submit your mobile phone number.  Not gonna happen.

### 5/5 — Best earthquake app I have used

*2020-03-20, version 4.0*

This is the earthquake app 
I have used. I like The ability of entering my address and seeing how safe my location is

## Frequently asked questions about Temblor

### What does Temblor do?

Temblor provides individuals with tools to understand their personal earthquake risk. It offers free, individualized earthquake risk information, displays real-time global earthquake data, and sends notifications for nearby quakes. The app also features news and analyses on earthquake science and events.

### How can I check my earthquake risk?

Under the 'Your Risk' tab, you can enter your home address or a city, state, or landmark to instantly see the potential earthquake magnitude for that location during your lifetime. You can also use map layers to explore various hazards like shaking and liquefaction susceptibility, depending on your location.

### Is Temblor free to use?

The core features of Temblor, including personalized earthquake risk information and global earthquake monitoring, are provided free to the public. The app does have in-app purchases, which may offer enhanced features or data depth.

### What kind of earthquake alerts does Temblor provide?

Temblor sends notifications when an earthquake strikes near your location. It's important to note that this is NOT an earthquake early warning system and is not designed to inform you of impending shaking. For early warnings, it's recommended to seek out your local agency.

### What is Temblor Earthquake News?

Temblor Earthquake News is a platform within the app dedicated to earthquake reporting. It provides breaking news about major earthquakes, post-quake analyses, and the latest developments in earthquake science in an easy-to-understand language. Temblor is an approved Google News source.

## Version history (last 5 releases)

### 4.2.0 — 2022-05-06

The login via SMS is replaced with login via Email.
Bugs are fixed to prevent the app from crashing a few situations.

### 4.1.0 — 2021-07-16

New hazard layers:

In addition to likely earthquake magnitude, liquefaction, landslide, tsunami, flood and wildfire hazards, Temblor now shows:

- Shaking Forecast (PUSH)
- Scenario Shaking (USGS Scenarios)

In Taiwan, Temblor now show Central Weather Bureau data for

- Shaking Forecast
- Scenario Shaking
- Landslide hazard
- Tsunami hazard
- Palert (earthquake notifications)

New Language support

Traditional Chinese

Earthquakes and faults reveal their info when tapped

Better Earthquake Notifications

FAQ documentation

### 4.0 — 2019-07-24

You can now register without a password via an unlock code sent to your cell phone. You don’t need to enter it again as long as you do not logout.  

We now provide more complete and more valuable seismic risk information for your home or building, with the repair cost in the largest likely earthquake—with and without seismic retrofit, and with and without earthquake insurance at various deductibles. This is something insurance company calculate but do not show to buyers.

 We have implemented a more comprehensive algorithm for the Earthquake Score. It now takes into account whether you are in a liquefaction, landslide, or fault zone.

Our new earthquake catalog merges events from a dozen seismic networks around the world, and tags the events as either mainshocks or aftershocks. You can filter the catalog by time period and magnitude, and zoom or pan the map, with a corresponding clickable table. 

We now provide push notifications for moderate or larger earthquakes near you.
 
The app now includes our news articles, which were previously in a separate website. We now are registered to assign DOI numbers, so that the articles are searchable in Google Scholar and their scientific citations are tracked.

### 3.2.1 — 2017-03-10

Easy to share a location with friends
Better suggestions in address search
Several bug fixes

### 3.2 — 2017-02-09

- Take action with earthquake insurance and a seismic retrofit by Temblor's expertise.
- New layer on map: California fault zones
- More visible and easy to use buttons
- Several bug fixes

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-25.*
