Skip to main content
U.S. flag

An official website of the United States government

Photo and Video Chronology - Mauna Loa - July 29, 2020

By Mauna Loa July 29, 2020

 

Annual GPS survey on Mauna Loa

 

image related to volcanoes. See description
Sources/Usage: Public Domain. View Media Details
Over the past several weeks, HVO geophysicists have been conducting the annual high-precision Global Positioning System (GPS) survey of Mauna Loa, which supplements HVO's continuous GPS monitoring stations. The annual GPS surveys provide information on vertical and horizontal deformation, informing HVO about the volume changes within subsurface magma reservoirs at Mauna Loa. This station was located on the north flank of Mauna Loa, with Mauna Kea (hugged by clouds on its east side) visible in the background. USGS photo by S. Conway.
image related to volcanoes. See description
Sources/Usage: Public Domain. View Media Details
Another GPS survey station that was recently occupied during the annual Mauna Loa GPS survey campaign. The disk-shaped GPS unit is placed on top of a tripod, which allows the GPS to be positioned exactly above the benchmark (the round metal plate on the surface of the lava flow). HVO has been conducting annual GPS surveys since the mid-1990s, allowing HVO to calculate how individual points (benchmarks) on Mauna Loa have moved compared to prior years. You can read more about GPS use in volcano-monitoring in this "Volcano Watch" article. USGS photo by S. Conway.

Get Our News

These items are in the RSS feed format (Really Simple Syndication) based on categories such as topics, locations, and more. You can install and RSS reader browser extension, software, or use a third-party service to receive immediate news updates depending on the feed that you have added. If you click the feed links below, they may look strange because they are simply XML code. An RSS reader can easily read this code and push out a notification to you when something new is posted to our site.

Hawaiian Volcano Observatory News

Mauna Loa News

Natural Hazards News

United States of America News

Volcano Hazards Program News