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
AAE281114423362218161031281383744201317209
ABG5391097613354765666106242423196
ABK8191251185750514822128101418427122181525575382365100
AIA321418619999533481051097677153021
AMS211369651476575344624102617344
API26197341710283223246986241476
AQU22513438825843754114391520279
ARS
ASC3388256345119778108231243181917
ASP28241065121599223566755111622186
BDV236184581442533661113641016223110
BEL331224567205344410112514971330293311
BFE4414285871975531213193919129194436259
BFO
BLC3068171393321572045233029164771558186542215235011414357
BMT4825571619122523377710571722281411
BNG3379339111311348111037331924172013
BOU4217202063289732281811162081547214631
BOX43182161072991012491522401912101645293812
BRW24599398102124882611831394764813056129184953919761546751263
BSL459121010257773162032823391757223131
CBB3860871349121433223191928334957688457321893149520728
CLF2461354992525275815641122222511
CMO125025595597116649883247717173734159689612414865
CNB82171147211371032346656372828334
CSY
CTA24241410514149103234567651112182110
CZT32911412171754888332424635202910
DLR361012146286773221242512431856203129
DOU2471164101273353681316951326272511
DRV373476311239292719219858109112684077582548
EBR32613714109131115162111513201171024212614
ESK2671297121161097101216352010112444402214
EUA
EYR53156552416612323455473950143014
FCC1244252234203235901121703625811273874344114126759716541
FRD4216193191866526101491320881351303927
FRN23201317728968323686722101848123023
FUR23516448133334365914641017212810
GCK
GDH2535742197998744781752422464833987031511072161059733
GNA513251241017108932345654583224228
GUA1331922211151247222434655131016615
GUI329104586798437636441436161616
GZH57463431633122545846171723128
HAD257136611937957781416761630292313
HBK429835107328233666351522132112
HER3287359583234566524927121913
HLP348207672063357122331179101636392311
HON11024161031772832233452982612913
HRB2361744101353523761013651016243110
HRN19295116943918018117878344041726268466238404372859627
HUA1711137917436710263445362139213396363420
HYB
IPM
IQA2834371198174204945999372421477079738365583044129115049
IRT415359619301761245277101265172136238
IZN
KAK22106278123833244463691019148
KDU98241613471679322445645111317107
KMH
KNY24842391447422555746131322115
KOU2491038634813131595769112057182419
LER241515698135116691319421710102757517111
LRM3729938101178323568755122924168
LVV3371755715665457111614761120272910
LYC
LZH4320103121711473237671056182328115
MAB
MAW
MBO33993484121611146745881741192115
MCQ8111435132012372816333449493111565213230
MEA1320422423203758471674661420111571749746716
MGD
MID
MMB44125571415492225678381214272918
NAQ91136913711813925811382311318101520373524291361831599176
NCK2341444101342523759125491622289
NEW108372324153720108324612101310111347385930
NGK2392457816632458122116861527303011
NUR3221266127271059312142545191391863434716
NVS493116811231881334578111266152640234
OTT54192814261741252411121416251073259547222
PAF33814771323710768565635968748424
PAG
PEG
PHU511663441643212646955202227136
PPT349510519827322234111198332194
PST
QSB329148371189673101151565201727349
RES355638692644444837351820611131271531072572422662056726348
SBA2857753629555524915632381528412026274161467724
SFS
SHU
SIT716261621332425132052476813752143403018
SJG2389498323224101498491546151719
SOD6135479252833381812861217386222171332481396553123
SPT32810448735158384310541026212214
STJ349339953158810108413237103053363416
SUA2361552714812103767915561315342010
TAM22793496201434511527441627201913
TAN3258635785521544634141113206
TDC
THL2032864113452338175916517915816020715376691691437919034
THY23515531014655248691465111725319
TRW
TSU33893598334365487351629152014
TUC451413165298783237101415931650183127
UPS33172359520853211132139161081753384012
VAL248965136410966681315681632271912
VIC9734152015311881132359511661238294330
VSS24121149655101091112918141751662163221
WNG3411306971865339111732181081737402711
YKC1964711131371482491521815244435155236638351327608524329