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
AAE39101124323754476210144739715311333710119
ABG8712116
ABK15152323191910128313519122121501971893212211082227679
AIA39111789452111313281661271089720218
AMS2445587910111582413141318453916176
API
AQU23234435237106195612197325786
ARS
ASC234657569621520201610683151048
ASP81068656517810610179323241454
BDV23123326191136101361294214774
BEL246444463015991518101514952112366
BFE4897454533189122531192324168415431112
BFO
BLC143321541212210718164186189559132524421117348554119210311775
BMT893413896221466141711555223965
BNG4545813163016125544321317261232551010
BOU557336335124131934148344114184
BOX26341685201352435251524401345533717
BRW132817513451152151125644813322119756152127614744835638
BSL367871244891323424514107771014249
CBB2233394116374121114838725843326357277101154144142109159127
CLF2222553221757813815136334685
CMO516193119485912145312794023417639126079160151827344629
CNB453811425118425188132432697
CSY
CTA7713104776238157122613323252564
CZT2244345874586877103225636
DLR377981656211911192475201056710142113
DOU343575441988710209171563348116
DRV61116179247975238254736242923518082319432433752689769
EBR55668118527108122910102340138712141312
ESK2412431213116682715181297239115
EUA
EYR386148665212266131818456776644
FCC131840811312348845259412275502195434251036328342838483224
FRD12433314553422737115491513104
FRN596441133242611121153811595492116
FUR23222424211023814613105225775
GCK
GDH501918223133231557558124147344117360163190195924931526668
GNA551524158135131294473881228578612207
GUA1711231510135112071151025932556882316
GUI3536774412961529161410167634979
GZH39411118873418111021221351172421146
HAD344445432069151121151714653813126
HBK34555857151296169101086436446
HER225258488131113191811548326957
HLP475444442915719232714181613638261112
HON26463554481281510
HRB232344461993891071284226974
HRN2848698937107411041892112021093363880771909627395121518899
HUA3910127223101215122022382663663730253450811
HYB
IPM
IQA155417383529275950163185108192129380188651069068183335534
IRT764113261817108612209763322534
IZN
KAK1171413145811311619111628157564359614
KDU46811711482512161015301754536310124
KMH
KNY69791381311382021131728177363347511
KOU0105589142039
LER2556763792176214627254933147520157
LRM714212288101418282092646271410446591714
LVV357465672611981113101413955122176
LYC
LZH812468810622119619171361173231056
MAB
MAW
MBO463578612711722372719101491041015711
MCQ72019413127221317612211449324219230229542931823335519
MEA52527231270431544534319923307158114569023131322194537
MGD
MID
MMB5491393104181310715261083432581110
NAQ37100146571217549561028612134251049454858052403713753196
NCK232233351882881071294224686
NEW
NGK121122151919471720612125211563
NUR27844671022167244536115585234811441225
NVS3445612715138512151486584471058
OTT3531041187191915725151010201171128302510
PAF01322633511101063813403028158920129
PAG
PEG
PHU5161118171310104318121131261861793521757
PPT66693847132059107657569617410
PST
QSB24534744181010728878229337885
RES3951242133191610463437568551374311917218710260303448
SBA4032292231301925199464476315079428729484965396051
SFS
SHU
SIT42624221412443311379152791061255198401581410185
SJG24563102388119176134872261489
SOD912161313951192122241265541975151143319011113180
SPT3322553416647186910199224487
STJ789281315712920828243320252630161632312516
SUA
TAM3533776141083113424101518125457810
TAN
TDC
THL1728291620161848594917124157174959164531285621432716
THY232234251994710861294215775
TRW25695102344881981856574312106
TSU12322553151841118115676112244
TUC56554123421211012104516161025692010
UPS26532528191651937439447124659301220
VAL3488375517127216112313145431224134
VIC71917951135115321164928131010101081092312
VSS2357483361131114491015710361359
WNG466623332818571927151313128414351011
YKC1426285957147954126144411929272660675460370114342937623729