Earthquake Emergency Response
Seismic monitoring can quickly provide information on the location, size and nature of an earthquake. Acquiring accurate information within minutes is critical to planning an emergency response.
Warning of Volcanic Eruptions
Swelling of the Earth's surface, earthquake activity and the release of gases from vents in the ground precede volcanic eruptions. Monitoring of these events provides early warning of unrest, which in turn provides valuable time to organise a public response. Once an eruption is underway, monitoring provides vital information on local dangers and regional effects of the eruption.
Data from a monitoring network are fundamental to a better understanding of earthquake occurrence and effects and of the processes that cause volcanic eruptions, tsunamis and landslides.
Recordings of strong ground motion in structures and near the source of large earthquakes are essential for safe, cost-effective design and construction practices for every type of structure.
Seismic Hazard Assessment
Information on the probability of ground shaking expected in future earthquakes is dependent on data from seismic monitoring, combined with geological studies and dating of prehistoric earthquakes. This information is highly relevant to investment in communities and the distribution of infrastructure.
Warning of Tsunami
The first warning that an offshore earthquake may have generated a tsunami (seismic sea wave) comes from seismic monitoring.
Data from a monitoring network contribute to information received by the public on natural hazards.
Insurance and Other Mitigation
Scientific assessment of data from the monitoring network contributes information about variations in geological risk. This knowledge can be used to assess potential losses from future hazard events and to adjust the risk.
Disaster Risk Management
The data from GeoNet contribute to improving disaster risk management in New Zealand communities. A better understanding of the hazard provides the basis for improved readiness and reduction of the community's exposure to risk, while accurate and timely information aids the response to an event and subsequent recovery.
Benefits of GeoNet
There is still a great deal to learn about the causes of earthquakes, volcanic eruptions and landslides. The higher quality information from the GeoNet monitoring network is crucial to improving our understanding of earthquakes, volcanic eruptions, tsunamis and landslides. GeoNet's greatest long-term benefits will be our improved scientific understanding of these phenomena, together with timely detection and warning of hazards. These benefits will contribute to safer communities.