Ingrid A. Johanson
Ingrid is a research geophysicist at the Hawaiian Volcano Observatory. She is an expert in using GPS, as well as satellite radar data (InSAR), to measure motion of the ground surface in response to geologic events such as earthquakes and magma movement.
Science and Products
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, SDH, SMC, UWE) from January 1 to December 31, 2022
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, SDH, SMC, UWE) from January 1 to December 31, 2022. These data were collected in 2022 by Andria P. Ellis of the USGS Hawaiian Volcano Observatory.
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, POO, SDH, SMC, UWE) from January 1 to December 31, 2021
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, POO, SDH, SMC, UWE) from January 1 to December 31, 2021. These data were collected in 2021 by Andria P. Ellis of the USGS Hawaiian Volcano Observatory.
The authors thank Sarah Conway for conducting many of clock resets for these tiltmeters in 2021.
Tiltmeter data from Kīlauea’s East Rift Zone station JKA from August 1 to September 15, 2014
Tiltmeter data from station Jonika Flow (JKA) used in the publication "Pre-existing ground cracks as lava flow pathways at Kīlauea in 2014" by Tim R. Orr, Edward W. Llewellin, Kyle R. Anderson, and Matthew R. Patrick. These data were collected in 2014 by Asta Miklius of the USGS Hawaiian Volcano Observatory.
Tiltmeter data from Mauna Loa summit stations (BLB, MCC, MLO, MOK, SLC) from January 1 to December 31, 2021
Tiltmeter data from stations BLB, MCC, MLO, MOK, and SLC from January 1 to December 31, 2021.
Tiltmeter data from Mauna Loa summit stations (BLB, MCC, MLO, MOK, SLC) from January 1 to December 31, 2022
Tiltmeter data from stations BLB, MCC, MLO, MOK, and SLC from January 1 to December 31, 2022, spanning the Mauna Loa 2022 eruption and unrest.
Campaign GPS measurements on the Island of Hawaiʻi collected by the Hawaiian Volcano Observatory in 2021
This release includes data collected during campaign GPS surveys at Kīlauea and Mauna Loa Volcanoes on the Island of Hawaiʻi in 2021. It includes data from a total of 63 sites occupied from January 1 to December 31, 2021. For each site, we include its measured raw data in daily files, Receiver INdependent EXchange (RINEX) files for each day, field log sheet(s), and associated metadata information.
Tiltmeter data from Kīlauea summit stations UWE and SDH from January 1 to December 31, 2020
Tiltmeter data from borehole tilt stations UWE and SDH from January 1 to December 31, 2020, spanning a Kīlauea summit intrusion and summit eruption that began on December 20, 2020. These data were collected in 2020 by Andria P Ellis and Ingrid A Johanson of the USGS Hawaiian Volcano Observatory. The authors thank Sarah Conway for conducting the nearly monthly clock resets for these tiltmeters in 2
Data of the Hawaiian Volcano Observatory (HVO) Kīlauea Campaign Gravity Network (KCGN)
Data Description Campaign microgravity surveys have been conducted at K?lauea, Hawai‘i (USA), since 1975 (Dzurisin and others, 1980) and, when combined with deformation measurements, enable insights into mass change within the volcano (Jachens and Eaton, 1980; Johnson, 1992; Kauahikaua and Miklius, 2003; Johnson and others, 2010; Bagnardi and others, 2014; Poland and others 2019). For example, mic
Campaign GPS measurements on the Island of Hawai`i collected by the Hawaiian Volcano Observatory in 2020
This dataset includes raw and rinex data from 2020 campaign gps data from the Island of Hawai`i in 2020. There was a total of 57 sites occupied. All data are included along with metadata, log sheets and raw/rinex data.
Campaign GPS measurements on the Island of Hawai'i collected by the Hawaiian Volcano Observatory in 2019
This dataset includes raw and rinex data from 2019 campaign gps data from the Island of Hawai'i in 2019. There were a total of 69 sites occupied. All data is included along with metadata, log sheets and raw/rinex data.
Filter Total Items: 23
Ground deformation and gravity for volcano monitoring
IntroductionWhen magma accumulates or migrates, it can cause pressurization and related ground deformation. Characterization of surface deformation provides important constraints on the potential for future volcanic activity, especially in combination with seismic activity, gas emissions, and other indicators. A wide variety of techniques and instrument types have been applied to the study of grou
Authors
Emily K. Montgomery-Brown, Kyle R. Anderson, Ingrid A. Johanson, Michael P. Poland, Ashton F. Flinders
Olivine diffusion constrains months-scale magma transport within Kīlauea volcano’s summit reservoir system prior to the 2020 eruption
The unprecedented 2018 summit collapse at Kīlauea and subsequent 2020–2021 eruption within the newly deepened Halema‘uma‘u Crater provide an unparalleled opportunity to understand how collapse events impact a volcano’s shallow reservoir system and magmatic processes. Glass and olivine from tephra ejected by lava fountains and several explosions on 20–21 December, within a few hours of the 2020 eru
Authors
Kendra J. Lynn, Patricia A. Nadeau, Dawn Catherine Sweeney Ruth, Jefferson Chang, Peter Dotray, Ingrid A. Johanson
Coordinating science during an eruption: Lessons from the 2020–2021 Kīlauea volcanic eruption
Data collected during well-observed eruptions can lead to dramatic increases in our understanding of volcanic processes. However, the necessary prioritization of public safety and hazard mitigation during a crisis means that scientific opportunities may be sacrificed. Thus, maximizing the scientific gains from eruptions requires improved planning and coordinating science activities among governmen
Authors
Kari M. Cooper, Kyle R. Anderson, Kathy Cashman, Michelle L. Coombs, Hannah R. Dietterich, Tobias Fischer, Bruce F. Houghton, Ingrid A. Johanson, Kendra J. Lynn, Michael Manga, Christelle Wauthier
Incremental caldera collapse at Kīlauea Volcano recorded in ground tilt and high-rate GNSS data, with implications for collapse dynamics and the magma system
Ground deformation during caldera collapse at Kīlauea Volcano in 2018 was recorded in unprecedented detail on a network of real-time GNSS (Global Navigation Satellite System) and tilt instruments. Observations informed hazard assessments during the eruption and now yield insight into collapse dynamics and the magma system. The caldera grew in size over 78 days in a series of repeating, quasi-perio
Authors
Kyle R. Anderson, Ingrid A. Johanson
Earthquake-derived seismic velocity changes during the 2018 caldera collapse of Kīlauea volcano
The 2018 Kīlauea caldera collapse produced extraordinary sequences of seismicity and deformation, with 62 episodic collapse events which significantly altered the landscape of the summit region. Despite decades of focused scientific studies at Kīlauea, detailed information about the internal structure of the volcano is limited. Recently developed techniques in seismic interferometry can be used to
Authors
Alicia J. Hotovec-Ellis, Brian Shiro, David R. Shelly, Kyle R. Anderson, Matt Haney, Weston Thelen, Emily K. Montgomery-Brown, Ingrid A. Johanson
Rainfall an unlikely trigger of Kilauea’s 2018 rift eruption
If volcanic eruptions could be forecast from the occurrence of some external process, it might be possible to better mitigate risk and protect lives and livelihoods. Farquharson and Amelung1 suggested that the 2018 lower East Rift Zone (ERZ) eruption of Kīlauea Volcano—the most destructive eruption in Hawai‘i in at least 200 years2—was triggered by extreme precipitation, which caused increased por
Authors
M. Poland, Shaul Hurwitz, James P. Kauahikaua, Emily K. Montgomery-Brown, Kyle R. Anderson, Ingrid A. Johanson, Matthew R. Patrick, Christina A. Neal
A decade of geodetic change at Kīlauea’s summit—Observations, interpretations, and unanswered questions from studies of the 2008–2018 Halemaʻumaʻu eruption
On March 19, 2008, a small explosion heralded the onset of an extraordinary eruption at the summit of Kīlauea Volcano. The following 10 years provided unprecedented access to an actively circulating lava lake located within a region monitored by numerous geodetic tools, including Global Navigation Satellite System (GNSS), interferometric synthetic aperture radar (InSAR), tilt, and gravity. These d
Authors
Michael P. Poland, Asta Miklius, Ingrid A. Johanson, Kyle R. Anderson
Insight into the May 2015 summit inflation event at Kīlauea Volcano, Hawai‘i
We use ground and space geodetic data to study surface deformation at Kīlauea Volcano from January to September 2015. This period includes an episode of heightened activity in April and May 2015 that culminated in a magmatic intrusion beneath the volcano's summit. The data set consists of Global Navigation Satellite System (GNSS), tilt, visual and seismic time series along with 25 descending and 1
Authors
M. Bemelmans, Elske de Zeeuw-van Dalfsen, M. Poland, Ingrid A. Johanson
Monitoring network changes during the 2018 Kīlauea Volcano eruption
In the summer of 2018, Kīlauea Volcano underwent one of its most significant eruptions in the past few hundred years. The volcano’s summit and East Rift Zone magma system partially drained, resulting in a series of occasionally explosive partial caldera collapses, and widespread lava flows in the lower East Rift Zone. The Hawaiian Volcano Observatory (HVO) operates a robust permanent monitoring ne
Authors
Brian Shiro, Michael H. Zoeller, Kevan Kamibayashi, Ingrid A. Johanson, Carolyn Parcheta, Matthew R. Patrick, Patricia A. Nadeau, R. Lopaka Lee, Asta Miklius
The cascading origin of the 2018 Kīlauea eruption and implications for future forecasting
The 2018 summit and flank eruption of Kīlauea Volcano was one of the largest volcanic events in Hawaiʻi in 200 years. Data suggest that a backup in the magma plumbing system at the long-lived Puʻu ʻŌʻō eruption site caused widespread pressurization in the volcano, driving magma into the lower flank. The eruption evolved, and its impact expanded, as a sequence of cascading events, allowing relative
Authors
Matthew R. Patrick, Bruce F. Houghton, Kyle R. Anderson, Michael P. Poland, Emily K. Montgomery-Brown, Ingrid A. Johanson, Weston Thelen, Tamar Elias
Very‐long‐period (VLP) seismic artifacts during the 2018 caldera collapse at Kīlauea, Hawaii
Throughout the 2018 eruption of Kīlauea volcano (Hawai‘i), episodic collapses of a portion of the volcano’s summit caldera produced repeated Mw 4.9–5.3 earthquakes. Each of these 62 events was characterized by a very‐long‐period (VLP) seismic signal (>40 s). Although collapses in the later stage of the eruption produced earthquakes with significant amplitude clipping on near‐summit broadband se
Authors
Ashton F. Flinders, Ingrid A. Johanson, Phillip B. Dawson, Kyle R. Anderson, Matthew M. Haney, Brian Shiro
Caldera collapse geometry revealed by near‐field GPS displacements at Kilauea Volcano in 2018
We employ near‐field GPS data to determine the subsurface geometry of a collapsing caldera during the 2018 Kīlauea eruption. Collapse occurred in 62 discrete events, with “inflationary” deformation external to the collapse, similar to previous basaltic collapses. We take advantage of GPS data from the collapsing block and independent constraints on the magma chamber geometry from inversion of defl
Authors
Paul Segall, Kyle R. Anderson, Fabio Pulvirenti, Taiyi Wang, Ingrid A. Johanson
Science and Products
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, SDH, SMC, UWE) from January 1 to December 31, 2022
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, SDH, SMC, UWE) from January 1 to December 31, 2022. These data were collected in 2022 by Andria P. Ellis of the USGS Hawaiian Volcano Observatory.
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, POO, SDH, SMC, UWE) from January 1 to December 31, 2021
Tiltmeter data from Kīlauea stations (ESC, IKI, JKA, KAE, POC, POO, SDH, SMC, UWE) from January 1 to December 31, 2021. These data were collected in 2021 by Andria P. Ellis of the USGS Hawaiian Volcano Observatory.
The authors thank Sarah Conway for conducting many of clock resets for these tiltmeters in 2021.
Tiltmeter data from Kīlauea’s East Rift Zone station JKA from August 1 to September 15, 2014
Tiltmeter data from station Jonika Flow (JKA) used in the publication "Pre-existing ground cracks as lava flow pathways at Kīlauea in 2014" by Tim R. Orr, Edward W. Llewellin, Kyle R. Anderson, and Matthew R. Patrick. These data were collected in 2014 by Asta Miklius of the USGS Hawaiian Volcano Observatory.
Tiltmeter data from Mauna Loa summit stations (BLB, MCC, MLO, MOK, SLC) from January 1 to December 31, 2021
Tiltmeter data from stations BLB, MCC, MLO, MOK, and SLC from January 1 to December 31, 2021.
Tiltmeter data from Mauna Loa summit stations (BLB, MCC, MLO, MOK, SLC) from January 1 to December 31, 2022
Tiltmeter data from stations BLB, MCC, MLO, MOK, and SLC from January 1 to December 31, 2022, spanning the Mauna Loa 2022 eruption and unrest.
Campaign GPS measurements on the Island of Hawaiʻi collected by the Hawaiian Volcano Observatory in 2021
This release includes data collected during campaign GPS surveys at Kīlauea and Mauna Loa Volcanoes on the Island of Hawaiʻi in 2021. It includes data from a total of 63 sites occupied from January 1 to December 31, 2021. For each site, we include its measured raw data in daily files, Receiver INdependent EXchange (RINEX) files for each day, field log sheet(s), and associated metadata information.
Tiltmeter data from Kīlauea summit stations UWE and SDH from January 1 to December 31, 2020
Tiltmeter data from borehole tilt stations UWE and SDH from January 1 to December 31, 2020, spanning a Kīlauea summit intrusion and summit eruption that began on December 20, 2020. These data were collected in 2020 by Andria P Ellis and Ingrid A Johanson of the USGS Hawaiian Volcano Observatory. The authors thank Sarah Conway for conducting the nearly monthly clock resets for these tiltmeters in 2
Data of the Hawaiian Volcano Observatory (HVO) Kīlauea Campaign Gravity Network (KCGN)
Data Description Campaign microgravity surveys have been conducted at K?lauea, Hawai‘i (USA), since 1975 (Dzurisin and others, 1980) and, when combined with deformation measurements, enable insights into mass change within the volcano (Jachens and Eaton, 1980; Johnson, 1992; Kauahikaua and Miklius, 2003; Johnson and others, 2010; Bagnardi and others, 2014; Poland and others 2019). For example, mic
Campaign GPS measurements on the Island of Hawai`i collected by the Hawaiian Volcano Observatory in 2020
This dataset includes raw and rinex data from 2020 campaign gps data from the Island of Hawai`i in 2020. There was a total of 57 sites occupied. All data are included along with metadata, log sheets and raw/rinex data.
Campaign GPS measurements on the Island of Hawai'i collected by the Hawaiian Volcano Observatory in 2019
This dataset includes raw and rinex data from 2019 campaign gps data from the Island of Hawai'i in 2019. There were a total of 69 sites occupied. All data is included along with metadata, log sheets and raw/rinex data.
Filter Total Items: 23
Ground deformation and gravity for volcano monitoring
IntroductionWhen magma accumulates or migrates, it can cause pressurization and related ground deformation. Characterization of surface deformation provides important constraints on the potential for future volcanic activity, especially in combination with seismic activity, gas emissions, and other indicators. A wide variety of techniques and instrument types have been applied to the study of grou
Authors
Emily K. Montgomery-Brown, Kyle R. Anderson, Ingrid A. Johanson, Michael P. Poland, Ashton F. Flinders
Olivine diffusion constrains months-scale magma transport within Kīlauea volcano’s summit reservoir system prior to the 2020 eruption
The unprecedented 2018 summit collapse at Kīlauea and subsequent 2020–2021 eruption within the newly deepened Halema‘uma‘u Crater provide an unparalleled opportunity to understand how collapse events impact a volcano’s shallow reservoir system and magmatic processes. Glass and olivine from tephra ejected by lava fountains and several explosions on 20–21 December, within a few hours of the 2020 eru
Authors
Kendra J. Lynn, Patricia A. Nadeau, Dawn Catherine Sweeney Ruth, Jefferson Chang, Peter Dotray, Ingrid A. Johanson
Coordinating science during an eruption: Lessons from the 2020–2021 Kīlauea volcanic eruption
Data collected during well-observed eruptions can lead to dramatic increases in our understanding of volcanic processes. However, the necessary prioritization of public safety and hazard mitigation during a crisis means that scientific opportunities may be sacrificed. Thus, maximizing the scientific gains from eruptions requires improved planning and coordinating science activities among governmen
Authors
Kari M. Cooper, Kyle R. Anderson, Kathy Cashman, Michelle L. Coombs, Hannah R. Dietterich, Tobias Fischer, Bruce F. Houghton, Ingrid A. Johanson, Kendra J. Lynn, Michael Manga, Christelle Wauthier
Incremental caldera collapse at Kīlauea Volcano recorded in ground tilt and high-rate GNSS data, with implications for collapse dynamics and the magma system
Ground deformation during caldera collapse at Kīlauea Volcano in 2018 was recorded in unprecedented detail on a network of real-time GNSS (Global Navigation Satellite System) and tilt instruments. Observations informed hazard assessments during the eruption and now yield insight into collapse dynamics and the magma system. The caldera grew in size over 78 days in a series of repeating, quasi-perio
Authors
Kyle R. Anderson, Ingrid A. Johanson
Earthquake-derived seismic velocity changes during the 2018 caldera collapse of Kīlauea volcano
The 2018 Kīlauea caldera collapse produced extraordinary sequences of seismicity and deformation, with 62 episodic collapse events which significantly altered the landscape of the summit region. Despite decades of focused scientific studies at Kīlauea, detailed information about the internal structure of the volcano is limited. Recently developed techniques in seismic interferometry can be used to
Authors
Alicia J. Hotovec-Ellis, Brian Shiro, David R. Shelly, Kyle R. Anderson, Matt Haney, Weston Thelen, Emily K. Montgomery-Brown, Ingrid A. Johanson
Rainfall an unlikely trigger of Kilauea’s 2018 rift eruption
If volcanic eruptions could be forecast from the occurrence of some external process, it might be possible to better mitigate risk and protect lives and livelihoods. Farquharson and Amelung1 suggested that the 2018 lower East Rift Zone (ERZ) eruption of Kīlauea Volcano—the most destructive eruption in Hawai‘i in at least 200 years2—was triggered by extreme precipitation, which caused increased por
Authors
M. Poland, Shaul Hurwitz, James P. Kauahikaua, Emily K. Montgomery-Brown, Kyle R. Anderson, Ingrid A. Johanson, Matthew R. Patrick, Christina A. Neal
A decade of geodetic change at Kīlauea’s summit—Observations, interpretations, and unanswered questions from studies of the 2008–2018 Halemaʻumaʻu eruption
On March 19, 2008, a small explosion heralded the onset of an extraordinary eruption at the summit of Kīlauea Volcano. The following 10 years provided unprecedented access to an actively circulating lava lake located within a region monitored by numerous geodetic tools, including Global Navigation Satellite System (GNSS), interferometric synthetic aperture radar (InSAR), tilt, and gravity. These d
Authors
Michael P. Poland, Asta Miklius, Ingrid A. Johanson, Kyle R. Anderson
Insight into the May 2015 summit inflation event at Kīlauea Volcano, Hawai‘i
We use ground and space geodetic data to study surface deformation at Kīlauea Volcano from January to September 2015. This period includes an episode of heightened activity in April and May 2015 that culminated in a magmatic intrusion beneath the volcano's summit. The data set consists of Global Navigation Satellite System (GNSS), tilt, visual and seismic time series along with 25 descending and 1
Authors
M. Bemelmans, Elske de Zeeuw-van Dalfsen, M. Poland, Ingrid A. Johanson
Monitoring network changes during the 2018 Kīlauea Volcano eruption
In the summer of 2018, Kīlauea Volcano underwent one of its most significant eruptions in the past few hundred years. The volcano’s summit and East Rift Zone magma system partially drained, resulting in a series of occasionally explosive partial caldera collapses, and widespread lava flows in the lower East Rift Zone. The Hawaiian Volcano Observatory (HVO) operates a robust permanent monitoring ne
Authors
Brian Shiro, Michael H. Zoeller, Kevan Kamibayashi, Ingrid A. Johanson, Carolyn Parcheta, Matthew R. Patrick, Patricia A. Nadeau, R. Lopaka Lee, Asta Miklius
The cascading origin of the 2018 Kīlauea eruption and implications for future forecasting
The 2018 summit and flank eruption of Kīlauea Volcano was one of the largest volcanic events in Hawaiʻi in 200 years. Data suggest that a backup in the magma plumbing system at the long-lived Puʻu ʻŌʻō eruption site caused widespread pressurization in the volcano, driving magma into the lower flank. The eruption evolved, and its impact expanded, as a sequence of cascading events, allowing relative
Authors
Matthew R. Patrick, Bruce F. Houghton, Kyle R. Anderson, Michael P. Poland, Emily K. Montgomery-Brown, Ingrid A. Johanson, Weston Thelen, Tamar Elias
Very‐long‐period (VLP) seismic artifacts during the 2018 caldera collapse at Kīlauea, Hawaii
Throughout the 2018 eruption of Kīlauea volcano (Hawai‘i), episodic collapses of a portion of the volcano’s summit caldera produced repeated Mw 4.9–5.3 earthquakes. Each of these 62 events was characterized by a very‐long‐period (VLP) seismic signal (>40 s). Although collapses in the later stage of the eruption produced earthquakes with significant amplitude clipping on near‐summit broadband se
Authors
Ashton F. Flinders, Ingrid A. Johanson, Phillip B. Dawson, Kyle R. Anderson, Matthew M. Haney, Brian Shiro
Caldera collapse geometry revealed by near‐field GPS displacements at Kilauea Volcano in 2018
We employ near‐field GPS data to determine the subsurface geometry of a collapsing caldera during the 2018 Kīlauea eruption. Collapse occurred in 62 discrete events, with “inflationary” deformation external to the collapse, similar to previous basaltic collapses. We take advantage of GPS data from the collapsing block and independent constraints on the magma chamber geometry from inversion of defl
Authors
Paul Segall, Kyle R. Anderson, Fabio Pulvirenti, Taiyi Wang, Ingrid A. Johanson