This page shows frequently asked questions for the earthquake.report website.

Why are the "Past Week" and "Past Month" data feeds missing smaller earthquakes?

To make the page load quicker, earthquakes with a magnitude less than 2.5 are not available for the week and month options.

Why do I sometimes get "Sorry, we have no imagery here" when I "Zoom & Center" the map to a particular earthquake?

This happens when high resolution Google Maps imagery is not available (i.e. oceans and some foreign countries). Please zoom the map out a few clicks with the "-" button in the bottom right corner and the Google Maps imagery will appear.

Why is the Google Map not available on smaller screens?

This was a design choice for screen sizes less than 960 pixels. To get a map of any earthquake in the timeline, please use the "More Info" link and see the USGS-provided map.

Why are the day, week, and month choices not available on smaller screens?

This was a design choice for mobile. These options give too much data to look through on a mobile device.

What does a negative depth mean?

This means the earthquake epicenter was above ground, usually within a mountainous region.

What does MMI stand for and why is it used?

MMI is the maximally estimated intensity for the earthquake. It is a value between 0 and 10. Intensity measures the severity of the earthquake in terms of its effects on the earth's surface and on humans and their structures. There are many intensities for an earthquake, depending on where you are, unlike the magnitude, which is one number for each earthquake. MMI is the maximum of these intensities.

What do the "Felt By" values mean?

This is the total number of felt reports submitted to the USGS "Did You Feel It?" system.

Where does the incident data come from?

See the USGS GeoJSON Summary Format page.

I am from a different country like Turkey with many earthquakes, but most of them are not listed. Why?

The USGS timeline only reports the largest earthquakes from non-United States countries, and usually with a significant delay. Additional data sources beside USGS may be added in the future to fix this.

What does USGS stand for?

USGS stands for the United States Geological Survey.

Does the earthquake data refresh automatically?

No, you have to press refresh.

How often is the data updated?

Every minute.

Do I need to have JavaScript enabled to use this site?

Yes, JavaScript must be allowed originating from earthquake.report and maps.googleapis.com

I have an iOS device, is there a similar app to earthquake.report?

Yes, Earthquake Monitor is also my creation.

Is this website affiliated with the United States Geological Survey (USGS) or Google?


How can I contact the developer?

Please email me.

What are the Terms of Service?

Although this service tries its best, earthquake.report is presented with no warranty or guarantee of accurate information.

Although rare, the timeline from USGS may be subject to unannounced downtime.

If you try to scrape the content of earthquake.report with a computer program, you will be banned.

Is there a Privacy Policy?

Yes, see the Privacy Policy.