# Hawaiian Volcano Observatory HVO The U.S. Geological Survey's (USGS) Hawaiian Volcano Observatory (HVO), the first such observatory in the United States, was founded in 1912 by Thomas A. Jaggar. It was initially funded by the Massachusetts Institute of Technology, the Carnegie Geophysical Laboratory, and the Hawaiian Volcano research Association. HVO has been a Federal Government facility since 1919. The first seismic network in the USGS was installed on Kïlauea in the 1950s. [USGS HVO](https://www.usgs.gov/observatories/hvo) ## Stations | **Location** | **Code** | **Latitude** | **Longitude** | **Timespan** | **Components** | :--- | :--- | :---: | :---: | :---: | :---: | Hawaii | HVO| | | | ## Instrumentation ## Recording Medium smoked paper paper ## Data Availability More than 400,000 paper and smoke drum seismic records covering nearly 100 years of earthquakes and volcanic events in Hawai‘i are housed at HVO. Approximately 30,000 seismic records of large Hawaiian earthquakes, significant eruptive episodes, and teleseismic events have been identified. These include Mauna Loa eruptive sequences and large earthquakes and their subsequent aftershock sequences. **no. available** | **format** | **dpi** | **color**| | :---: | :---: | :---: | :---:| 9,740 | | | ## Contact For more information about this collection, please contact: \< *blank* \> ## References Anonymous. HVO’s Pilot Project to Archive Legacy Seismic Data, https://hilo.hawaii.edu/depts/geology/documents/SeismicArchive.pdf. *Last accessed 10 February 2022* Babb, J.L., Kauahikaua, J.P., and Tilling, R.I., 2011, The story of the Hawaiian Volcano Observatory—A remarkable first 100 years of tracking eruptions and earthquakes: U.S. Geological Survey General Information Product 135, 60 p., available at http://pubs.usgs.gov/gip/135/.