John C. Lahr

4.4k total citations · 1 hit paper
64 papers, 3.6k citations indexed

About

John C. Lahr is a scholar working on Geophysics, Artificial Intelligence and Environmental Chemistry. According to data from OpenAlex, John C. Lahr has authored 64 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Geophysics, 36 papers in Artificial Intelligence and 12 papers in Environmental Chemistry. Recurrent topics in John C. Lahr's work include earthquake and tectonic studies (35 papers), Seismology and Earthquake Studies (30 papers) and Geological and Geochemical Analysis (17 papers). John C. Lahr is often cited by papers focused on earthquake and tectonic studies (35 papers), Seismology and Earthquake Studies (30 papers) and Geological and Geochemical Analysis (17 papers). John C. Lahr collaborates with scholars based in United States. John C. Lahr's co-authors include W. H. K. Lee, Robert A. Page, C. D. Stephens, Bernard Chouet, John A. Power, George Plafker, H. Benz, J. A. Hole, Phillip Dawson and Edi Kissling and has published in prestigious journals such as Science, Journal of Geophysical Research Atmospheres and Geophysical Research Letters.

In The Last Decade

John C. Lahr

61 papers receiving 3.1k citations

Hit Papers

HYPO71 (revised; a computer program for determining hypoc... 1975 2026 1992 2009 1975 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. HYPO71 (revised; a computer program for determining hypocenter, magnitude, and first motion pattern of local earthquakes
    1975 917 citations W. H. K. Lee, John C. Lahr Antarctica A Keystone in a Changing World profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
John C. Lahr United States 25 3.4k 817 133 111 106 64 3.6k
David H. Oppenheimer United States 23 3.4k 1.0× 521 0.6× 132 1.0× 50 0.5× 137 1.3× 45 3.5k
Jens Havskov Norway 26 2.5k 0.7× 473 0.6× 98 0.7× 83 0.7× 251 2.4× 76 2.7k
Garry C. Rogers Canada 29 3.0k 0.9× 394 0.5× 246 1.8× 71 0.6× 162 1.5× 81 3.3k
Naoshi Hirata Japan 37 4.3k 1.3× 966 1.2× 191 1.4× 251 2.3× 203 1.9× 160 4.6k
Jim Mori Japan 33 3.6k 1.0× 696 0.9× 162 1.2× 161 1.5× 315 3.0× 101 3.9k
P. Okubo United States 32 2.9k 0.9× 550 0.7× 169 1.3× 82 0.7× 124 1.2× 89 3.2k
Diane I. Doser United States 26 2.0k 0.6× 219 0.3× 181 1.4× 83 0.7× 138 1.3× 107 2.2k
Hiroyuki Kumagai Japan 32 2.2k 0.6× 506 0.6× 181 1.4× 66 0.6× 63 0.6× 92 2.4k
S. W. Roecker United States 41 5.2k 1.5× 492 0.6× 127 1.0× 270 2.4× 93 0.9× 157 5.4k
Andreas Rietbrock United Kingdom 39 4.1k 1.2× 654 0.8× 217 1.6× 178 1.6× 226 2.1× 165 4.3k

Countries citing papers authored by John C. Lahr

Since Specialization
Citations

This map shows the geographic impact of John C. Lahr's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John C. Lahr with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John C. Lahr more than expected).

Fields of papers citing papers by John C. Lahr

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John C. Lahr. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John C. Lahr. The network helps show where John C. Lahr may publish in the future.

Co-authorship network of co-authors of John C. Lahr

This figure shows the co-authorship network connecting the top 25 collaborators of John C. Lahr. A scholar is included among the top collaborators of John C. Lahr based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John C. Lahr. John C. Lahr is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Meremonte, M., John C. Lahr, Arthur D. Frankel, et al.. (2002). Investigation of an earthquake swarm near Trinidad, Colorado, August-October 2001. Antarctica A Keystone in a Changing World. 22 indexed citations
2.
Snoke, J. A. & John C. Lahr. (2001). Locating Earthquakes: At What Distance Can the Earth No Longer Be Treated as Flat?. Seismological Research Letters. 72(5). 538–541. 18 indexed citations
3.
Jolly, Arthur D., et al.. (1996). Catalog of earthquake hypocenters for Augustine, Redoubt, Iliamna, and Mount Spurr volcanoes, Alaska: January 1, 1991 - December 31, 1993. Antarctica A Keystone in a Changing World. 6 indexed citations
4.
Power, John A., John C. Lahr, Robert A. Page, et al.. (1994). Seismic evolution of the 1989–1990 eruption sequence of Redoubt Volcano, Alaska. Journal of Volcanology and Geothermal Research. 62(1-4). 69–94. 132 indexed citations
5.
Lahr, John C., et al.. (1993). Location of acoustic sources using seismological techniques and software. Antarctica A Keystone in a Changing World. 2 indexed citations
6.
Casadevall, Thomas J., Bernard Chouet, John N. Davies, et al.. (1990). The eruption of Redoubt Volcano, Alaska, December 14, 1989-August 31, 1990. U.S. Geological Survey circular. 42 indexed citations
7.
Alpha, Tau Rho, John C. Lahr, & Robert A. Page. (1989). Oblique map of the north half of the Loma Prieta, California, earthquake rupture zone and environs. Antarctica A Keystone in a Changing World.
8.
Page, Robert A., C. D. Stephens, & John C. Lahr. (1989). Seismicity of the Wrangell and Aleutian Wadati‐Benioff Zones and the North American Plate along the Trans‐Alaska Crustal Transect, Chugach Mountains and Copper River Basin, southern Alaska. Journal of Geophysical Research Atmospheres. 94(B11). 16059–16082. 86 indexed citations
9.
Stephens, C. D., et al.. (1988). Catalog of earthquakes in southern Alaska for 1985. Antarctica A Keystone in a Changing World. 9 indexed citations
10.
Lahr, John C.. (1984). HYPOELLIPSE/VAX; a computer program for determining local earthquake hypocentral parameters, magnitude, and first motion pattern. Antarctica A Keystone in a Changing World. 24 indexed citations
11.
Lahr, John C. & C. D. Stephens. (1983). Eastern Gulf of Alaska seismicity: Final report to the National Oceanic and Atmospheric Administration for July 1, 1975, through September 30, 1981. Antarctica A Keystone in a Changing World. 3 indexed citations
12.
Stephens, C. D., et al.. (1983). Catalog of earthquakes in southern Alaska, April-June 1980. Antarctica A Keystone in a Changing World. 1 indexed citations
13.
Stephens, C. D., et al.. (1982). Catalog of earthquakes in southern Alaska, April-June 1978. Antarctica A Keystone in a Changing World. 2 indexed citations
14.
Hasegawa, H. S., John C. Lahr, & C. D. Stephens. (1980). Fault parameters of the St. Elias, Alaska, earthquake of February 28, 1979. Bulletin of the Seismological Society of America. 70(5). 1651–1660. 19 indexed citations
15.
Stephens, C. D., et al.. (1978). Catalog of earthquakes in southern Alaska: October-December 1977. Antarctica A Keystone in a Changing World. 5 indexed citations
16.
Lahr, John C., et al.. (1976). The August 1975 Oroville earthquakes. Bulletin of the Seismological Society of America. 66(4). 1085–1099. 41 indexed citations
17.
Lee, W. H. K. & John C. Lahr. (1975). HYPO71 (revised; a computer program for determining hypocenter, magnitude, and first motion pattern of local earthquakes. Antarctica A Keystone in a Changing World. 917 indexed citations breakdown →
18.
Lahr, John C., et al.. (1974). Catalog of earthquakes in south-central Alaska, April - June 1972. Antarctica A Keystone in a Changing World. 13 indexed citations
19.
Page, Robert A. & John C. Lahr. (1971). Measurements for fault slip on the Denali, Fairweather, and Castle Mountain Faults, Alaska. Journal of Geophysical Research Atmospheres. 76(35). 8534–8543. 12 indexed citations
20.
Sbar, Marc L., et al.. (1970). An earthquake sequence and focal mechanism solution, Lake Hopatcong, Northern New Jersey. Bulletin of the Seismological Society of America. 60(4). 1231–1243. 17 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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