Geomagnetic Activity Map - Hourly Ranges

Note: Empty cells of observatories (indicated in the leftmost column by their IAGA codes) indicate that there was insufficient data to calculate a hourly range.

Hourly range (nT) for 2004-04-23
IAGA 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
AAA
AAE243767381198109794133242767
ABG312843
ABK132523252927182639612924671407820013026171595117101104
AIA34725191810153413206253161989119816107
AMS15817771428131016716213225198231091710
API
AQU35810561155238181191281474416241411
ARS
ASC1315224953368411563243344
ASP51020211256498105311266205766152414
BDV381112771375275281381892155422281915
BEL5101212710121182782014101691866522282217
BFE5121717141212101028827171925213176536293021
BFO
BLC1441432923352343111821006713584966114712474811151126843
BMT112221011111431110111222
BNG000010111111110010000001
BOU10141215625733763116542917191711159681111
BOX691299126191426108202316332777310462120
BRW215261714256361513821117045321301284180137787774691349998
BSL266113884455481536121014123127612105
CBB297181522927212561603732137907569701611091061531146859
CLF4813159813101522832191722182595525301714
CMO61620249343813228276952928428925938521851272835734420
CNB91813261411133241965283716817610713161910
CSY
CTA141481813793138841813561547688205
CZT231041296133226127191224164123221241615
DLR78793924203173251313111145510997
DOU49131611813111424733191723193094627311916
DRV5877538353472264625858431218172302119917464962107
EBR011211121214312241113321
ESK511191812141114252913322332273238157531422118
EUA
EYR17191017101254623424817393514114681110616
FCC6121658421271922371962174094335347977754624173813441
FRD3631151813450591617332598163547171010
FRN4741261913313181573427122217810121514814
FUR37111377137625630151018122265524281815
GCK
GDH44213825393927428540739519211818884171102575442896981
GNA1413171722114151216176735117124110111311233314
GUA393951510874203842513364912
GUI2361145614816717161017414476101556
GZH012111001100211000001111
HAD3814167991216211230222621203196525341614
HBK2353471315292741415101921953261396
HER23436772313231217161217422543616104
HLP6121313810131212326232315161220106429302023
HON235134215984222227
HRB381012691297296191391661565420261815
HRN3063658283793312510520915050122866258665225207017814175
HUA1324334645513121278156655544
HYB
IPM
IQA2154666446752449791551371211131701797818992105511101077072
IRT41218101816104715111248342051735613301714
IZN
KAK122101111111321110011121
KDU51323189524768418935143655102412
KMH
KNY112111111101321110011122
KOU02291387101034
LER510211614141015273814222234274251146436502423
LRM15141423187418122113542362311255798132116
LVV4711118101013122431611914111065419251815
LYC
LZH991713209114913782816125824610161116
MAB
MAW
MBO23493541051361415523719532101025
MCQ172115402614131692175472926325620315612931281519292213
MEA61711191673381310021942211458876365537211727493417
MGD
MID
MMB222111111211531111111221
NAQ1155405049511625308030414661654747522421407143126
NCK381011671276265211491461465419251714
NEW
NGK4101516108148829532151421152665531292218
NUR612151510121110937919232121203986324373724
NVS6151113161912187141215333018112996818411811
OTT36520103620874891517433913172475910231215
PAF361512101482121252010295748542612434231412
PAG
PEG
PHU6713131154251424141274534579714
PPT734446129674541045181171013189
PST
QSB35468822314118610959155445161012
RES1850755746281445825957511267253702332262251971061065079
SBA4444463951562745978468763911387584940679198869585
SFS
SHU
SIT36416939373182119781012319746302819192025562513
SJG1312277215139131096161273511755
SOD1016181615161317234826215487498813915128941339253
SPT259124411119176241512161320384162298
STJ3681562317820292423154216914161189231014
SUA
TAM24594895618691187611332111378
TAN
TDC
THL185169585243405496728645152674659236122754042276978
THY3810116812873051914101561465419271815
TRW1229665715106101010912173667934
TSU23343612241724119169105185233986
TUC8118114167311298630201418129115128911
UPS612151512111291035823191925234184333353625
VAL37151561091218251622203319203296524351512
VIC59316934284532737861522223191814131726912
VSS122635447312491118764643644
WNG411161713101391428627171822203095533312520
YKC72333253917282363443101392888679430330188905354103638054