Organization Unit Statistics: U. S. Geological Survey, Hawaiian Volcano Observatory, PO Box 51, Hawaii National Park, Hawaii 96718-0051, USA

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Geo Map
Region #
EU - Europe 10
NA - North America 10
AS - Asia, other 8
Total 28
Country #
US - United States of America 10
CN - China 8
FI - Finland 4
DE - Germany 3
IE - Ireland 1
SE - Sweden 1
UA - Ukraine 1
Total 28
City #
Fremont 4
Hefei 2
Kunming 2
Dearborn 1
Des Moines 1
Dublin 1
Helsinki 1
Jacksonville 1
Kansas City 1
Nanjing 1
other 13
Total 28


Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Tot
2017 00 0000 0000 01 1
2018 00 0022 0000 10 5
2019 00 0000 1100 10 3
2020 53 0020 1000 10 12
2021 01 1000 0001 00 3
2022 02 0100 0000 00 3
Ever 28