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
ABG64116655105641076776106232423197
ABK1515976027637120117456128191345941336219535
AIA22923811244583236931075764203013
AMS1154343127455333442362624273
API3518524169273223246876211469
AQU12273528322324338325712146
ARS
ASC3266245256862999527931131715
ASP2817444107441112333326111395
BDV1125223784224457632551196
BEL3291345413672697916853619171310
BFE3215206971379441113152911751048373612
BFO
BLC132913859441895303561672914496351674821241047112316263
BMT48227515184334124446339101564
BNG3368337911112469927331923171912
BOU5348421041422228129105418131412
BOX3151533210456266915643547485924
BRW62043104483576696311323223882223293815468713319453
BSL24101238197352251811141735940212422
CBB354956147137464533311716377332571085010640269105119186108
CLF22372334347738667336812105
CMO41627513143724756771984810142425111866509526
CNB1224652211101122221322181511
CSY
CTA68138451185611234454291212163
CZT13141258212221222121138135
DLR326116419746233713610441642173121
DOU22683358346839687647161565
DRV69109583727502828151912138212719216618551511099115
EBR23615710645937286616751013212210
ESK1141172933566411713656131123117
EUA
EYR344474574522224333351016164
FCC101831346025414574911604117813181614162010542559121537
FRD1138341231323675883411921255
FRN234610314334212132103963161914
FUR11162237743336667325511105
GCK
GDH45920720666110165976410726394764917870235917257588549
GNA41015133671310711112432584022259
GUA112202120115114722233465512915514
GUI22109455445632543633132811169
GZH44104236102312243574414141896
HAD1231153654611859810856121019136
HBK1367107453464556553477693
HER235743138561210394723142852013
HLP2281344711672510918211065830343011
HON48181093146272224261224103514918
HRB11363437681256466326711116
HRN4040592395155163116944013153431295126554447304257106128
HUA1711137917426710263445352139213396363420
HYB
IPM
IQA19371772741081521467160106401442474660424132206119505975
IRT41117269159583443666228717118
IZN
KAK529391081559222555737910232014
KDU542396381388222445544101316115
KMH
KNY45155511121146322566845131322136
KOU24783863258151665447101848191916
LER13133394253721327643651228776721
LRM11839163171581613212668527814231423
LVV348126741251137591216115581518179
LYC
LZH381992111658541255574313141863
MAB
MAW
MBO231093474121511145755881841192115
MCQ6131549102237653835634559107312993617533
MEA41726615555747277267447111291152223857239
MGD
MID
MMB534674773511134443679202016
NAQ181130113917522714818493319131314204523242111034317112473
NCK1125343657114545622461195
NEW69477461276222243510541426145
NGK1124114455648748522561368
NUR43152279611642311515218637729911036
NVS337108358410674445452415181310
OTT2213149142116771455101714742718435411
PAF1158228715213111211130854447
PAG
PEG
PHU491174581434413656965202327114
PPT21639418826222334111079332184
PST
QSB1258217113579246384310914184
RES364018571315631157122328315414311916889119130462464
SBA23302550182116141117318121718402323172941316428
SFS
SHU
SIT313721111229148112223377951312332222
SJG23674711333651598735732101415
SOD101353942440371466424791110341426149716938
SPT215622332841142393251112136
STJ221825131241228565510102825126372739588
SUA114732211332224776224612126
TAM2268337312133348335341422161611
TAN1134313652411442413777113
TDC
THL15122639715343910374856498711230018722317287106342818
THY11263446571144456324511115
TRW
TSU112322333934233931268474
TUC42368214334223274364113282118
UPS221320571073322881116643756779325
VAL111012855667101038114657152424177
VIC7810111061013562232636101371824278
VSS127626332101375579101461041111915
WNG2111184671049539121021944831312211
YKC2034173163169229184344157624731183314272527104615817319222