Skip to main content
U.S. flag

An official website of the United States government

Volcano Watch — Coming home: HVO welcomes Deputy Scientist-in-Charge David Phillips

It takes a village to run a volcano observatory. The position of Deputy Scientist-in-Charge (DSIC), once called Operations Manager but always known as the right hand to the Scientist-in-Charge, has long been key to the Hawaiian Volcano Observatory's success, especially as technology has advanced and staff size increased.

Color photograph of man and woman in front of stratovolcano
New Hawaiian Volcano Observatory Deputy Scientist-in-Charge David Phillips and his wife Francine Coloma with Japan's iconic Mt. Fuji in the background. (Credit: Yasushi Harada. Public domain.)

Continuing in the tradition of skilled and dedicated leaders including Reggie Okamura, his brother Arnold Okamura, and recently retired Steve Brantley, HVO is proud to welcome David Phillips to the team.

This belated Volcano Watch should have been written in January when David and his wife Francine Coloma, who is a scientist with the National Oceanic and Atmospheric Administration (NOAA), moved to Hilo. David and Fran come (back) to us from Boulder, Colorado where David was a program manager for UNAVCO, the Geodetic Facility for the US National Science Foundation and NASA. There, he oversaw multimillion-dollar facility operations to collect, process and archive geodetic data, led community science activities around the globe, and coordinated earthquake response missions.

David has utilized high precision Global Positioning System (GPS) and Light Detection and Ranging (lidar) instruments to support state-of-the-art geophysical research projects in Hawai‘i, the mainland US, Japan, Italy, Croatia, Puerto Rico and other locales. As examples, he conducted terrestrial lidar fieldwork in Japan following the 2011 Tohoku earthquake and tsunami, and coordinated airborne lidar and satellite radar imaging of the San Andreas fault, Yellowstone, and other important geologic features.

In Hawai‘i, David had a leading role installing continuous GPS sites on Mauna Loa Volcano in 2005 as part of a collaborative project involving UNAVCO, USGS and the University of Hawai‘i (UH). He has also installed continuous GPS sites on Kīlauea Volcano, at the Hilo airport, and on O‘ahu and Kaua‘i to support sea level and atmospheric studies in addition to volcano monitoring. Thus, he is no stranger to the challenges and wonders of working on Hawaiian volcanoes with local communities and with profound respect for Hawaiian culture.

David has a PhD in geophysics from the University of Hawai‘i at Mānoa and a BS degree in geology from the University of Hawai‘i at Hilo. His dissertation focused on collecting and analyzing GPS data to study plate tectonics in the South Pacific, and also included work in South America and Antarctica.

While an undergraduate at UH-Hilo, he was a student assistant at the Center for Study of Active Volcanoes (CSAV) where he worked directly with HVO staff on volcano monitoring and outreach. David continued to be involved with CSAV as an instructor while at UH-Mānoa and UNAVCO, always returning to teach. He is passionate about science education and the encouragement of local youth to enter science, technology, engineering, and math (STEM) careers. He has taught youth programs at the Lyman Museum, led fieldtrips for Upward Bound, and helped Jim Kauahikaua (HVO) and Jim Anderson (UHH) teach a program for Nā Pua No‘eau. David is excited to contribute to HVO's outreach program going forward.

David brings professional ties to scientists and technical experts at major research institutions and other U.S. Government agencies such as NOAA and NASA who utilize technology and generate data very familiar to HVO. These ties will prove extremely useful to HVO as we enter the era of National Volcano Early Warning System expansion and integration of our efforts with the other US volcano observatories.

As HVO DSIC, David will supervise the field engineering staff and monitoring network managers, essentially the critical infrastructure backbone of the HVO instrumentation that tracks activity at our volcanoes. He will also oversee work on HVO facilities, play a pivotal role in the planning our new buildings, and facilitate important interagency relationships with Hawai‘i Volcanoes National Park and other cooperators in Hawai‘i.

In many ways, David and Fran are coming full circle. David's career in geophysics and volcano monitoring began when he was a geology major at UH-Hilo. Fran was born and raised in Hilo, was also a geology major at UH-Hilo, and previously worked at HVO. And, David and Fran first met while surveying in front of an active lava flow! Please join me in welcoming David and Fran back to Hawai‘i and to the HVO family.

Today's article is by Hawaiian Volcano Observatory Scientist-in-Charge Tina Neal.

Volcano Activity Update

Kīlauea Volcano is not erupting. Its USGS Volcano Alert level remains at NORMAL ( Kīlauea updates are issued monthly.

Kīlauea monitoring data for the past month show variable but typical rates of seismicity and ground deformation, low rates of sulfur dioxide emissions, and only minor geologic changes since the end of eruptive activity in September 2018. The water lake at the bottom of Halema‘uma‘u continues to slowly expand and deepen. For the most current information on the lake, see

Mauna Loa is not erupting and remains at Volcano Alert Level ADVISORY. This alert level does not mean that an eruption is imminent or that progression to an eruption from current level of unrest is certain. Mauna Loa updates are issued weekly.

This past week, about 92 small-magnitude earthquakes were recorded beneath the upper elevations of Mauna Loa; most of these occurred at shallow depths less than 8 kilometers (~5 miles). Global Positioning System (GPS) measurements show slowly increasing summit inflation, consistent with magma supply to the volcano's shallow storage system. Gas concentrations at the Sulphur Cone monitoring site on the Southwest Rift Zone remain stable. Fumarole temperatures as measured at both Sulphur Cone and the summit have not changed significantly. For more information on current monitoring of Mauna Loa Volcano, see:

There were 2 events with 3 or more felt reports in the Hawaiian islands during the past week: a magnitude-3.2 earthquake 8 km (5 mi) NE of Pāhala at 32 km (20 mi) depth on May 10, 2020 at 12:20 p.m. HST, and a magnitude-3.7 earthquake 25 km (16 mi) W of Kailua-Kona at 41 km (25 mi) depth on May 06, 2020 at 10:55 p.m. HST.

HVO continues to closely monitor both Kīlauea and Mauna Loa for any signs of increased activity.

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.