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 2004-04-30
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
AAE281113423362218161031281383744201217209
ABG4391097613354765666106242423196
ABK820124113555055492313710141742702218152557437834798
AIA321318818217962357941187676153417
AMS121465421365486545524634202610
API25197341710283223246986241476
AQU22513337824743754114391319279
ARS
ASC3388246378129588119361342181918
ASP28231054121588223566754111922177
BDV236184581442433651113651014223110
BEL331325565205334510122514107132929349
BFE4414295972076631213193919129194536259
BFO
BLC3068167386309551945233029164871578184532214834611214257
BMT4824571619122523377710571722281411
BNG3379339111311348111037331924172013
BOU4211181853068732261710151681553204230
BOX3220196109299910410142239181210153531317
BRW24671037283111772531791283053742654104172794017850638142264
BSL459121010257773152032823391757223131
CBB396010514591405534211917262639496584673223634910020739
CLF24613541092525275815641123232512
CMO10492465558810671957225891713403213146111712218558
CNB73141037191361021346666281732336
CSY
CTA232314104131389223456764121419209
CZT23134278247314974662475013239
DLR35913137276773331042311431859193429
DOU2471163101273353681316951327272511
DRV3543783114393026172198691191126939106492045
EBR32613714109131115162111513201171024212514
ESK2691297131171086111316362011112449412516
EUA
EYR361586521166123344545831141193214
FCC1244252232205235891121703625811273874344114125759716440
FRD4214165182266527101271822871349324227
FRN2214131762866732445661571750112823
FUR2351644813333436591364101521289
GCK
GDH21377221282112805888892731598863639254391102431506531
GNA41325123101698932345654583024217
GUA1331922211151247222434655131016615
GUI32101045756910646646451539161717
GZH47452331433112435745151520116
HAD258126612938848781416761634292114
HBK327755693311334797251618122210
HER31663368523355696341218101810
HLP349207662063257112330169101535382110
HON110241511417728323336929832151015
HRB23717449135242376101365101624329
HRN193251162469073177173783240427160664562384043528310327
HUA1711137917426710263445352139213296363420
HYB
IPM
IQA193421026115714311446106562721466975106755126261340738952
IRT416348720301761155277101265172136228
IZN
KAK22106278123833244463691019148
KDU98231513471679322445654121516106
KMH
KNY24842381447422555746131322115
KOU2491039732711171774558132257202520
LER241213689125115691319421810102763517413
LRM2729938101178223568655122924168
LVV339175661654345711161476111926309
LYC
LZH442093121711463237671056182227115
MAB
MAW
MBO331093473121613247856881843192216
MCQ71516341320194028153345511783111254213927
MEA1322283432234057452354761525142062359756914
MGD
MID
MMB44125571415492225678381214272918
NAQ912439168127172320134873012141216171842282314318715211669
NCK235154491342423759125491322288
NEW109252726143615863253111212951254355829
NGK2392457717632358122116861527313010
NUR3223266139271058412142444191391753424013
NVS273217109231971445478121176152942214
OTT5315221025256953511101424291173254528023
PAF2324951512283956878873574872528
PAG
PEG
PHU511663441643212646955192227136
PPT141061151982732333511977332196
PST
QSB321014737117867391151465201726338
RES296856551265273736351921491051181671071991132901257322149
SBA194058522056342925158038121414251917335142552922
SFS
SHU
SIT7162013132522221315424551581682263385123
SJG237841093233251316118481445171519
SOD6145770232837381812761116375921171331489382524116
SPT32810449744169385310551027212114
STJ3310357101441089108461927773153413818
SUA23615526147109366791457131533209
TAM22793496201434511527441627201913
TAN2266465947712465634151313204
TDC
THL2351703925505449222919397073115217185170143235371322813
THY2351653914644238591465111525318
TRW
TSU338934793333754108361826152114
TUC43101215527667324581212631653173125
UPS221924510621853211132039161081748383611
VAL24101066136510857781415671638271814
VIC88231923123112783243789731245264329
VSS231210394439151199715131671655163121
WNG2411306971865339111732181081737402711
YKC2267671122031772681952213944414955216836481250707229632