FITS Deprecation Notice
The FITS data base is being deprecated on the 31st March 2025.
The data is being migrated to Tilde and will be available through the API and visualization interfaces.
You can check on the status of the different data sets on our FITS System Deprecation: Transition to Tilde API page.
Earthquake Drums
The timestamp shown at the top right of the seismograph drum shown above is the time when this image was last refreshed. The previous four hours (240 minutes) of seismic signals (also known as traces) from all New Zealand National Seismograph Network recording sites are displayed, oldest to most recent from left to right. The stations are ordered from north to south. Earthquakes that have been felt would usually feature on several of these traces within minutes of each other. However, not all earthquakes that are widely recorded on these traces are felt by people.
- Seismographs that are not operating correctly are displayed with red traces.
- As there are several different models of seismometer in use, it is not possible to directly compare the amplitudes (heights) of the traces.
