About Klaxon

Klaxon is an independent, real-time map of earthquakes, tsunamis and volcanic activity around the world, in English, Japanese, Korean and Spanish. It brings together what official agencies publish, so you can see what is happening in one place, in your own language and your own time zone.

What it shows

• Earthquakes of magnitude 2.5 and above from the past 24 hours, from the U.S. Geological Survey. The slider sets the smallest magnitude shown and remembers your choice.
• Earthquakes that USGS flagged as possible tsunami sources over the past 12 months.
• Volcanic activity and other alerts from GDACS. Cyclones, floods and droughts are there too, as secondary layers that start switched off.
• Headlines about significant events, gathered from a short list of outlets and through the GDELT Project, and official reports from Japan's Fire and Disaster Management Agency and Korea's Ministry of the Interior and Safety.

How it works

Klaxon checks its sources every one to five minutes and stores each event as it is published, so every event has a page of its own that stays available after it drops off the live map. Headlines are gathered once per event when it is stored, never each time someone opens it. Times are shown in your device's time zone.

What it is not

Klaxon is not an official warning service. It relays information from official sources but does not issue warnings, and it can be delayed or incomplete. Always follow your local authorities. Read the disclaimer for more.

Who runs it

Klaxon is independent and run by one person in Sydney, Australia. It has no advertising and no accounts. Every source it uses, and how each one is credited, is listed on Data sources and attribution. To get in touch, see Contact and support.