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 2004-04-16
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
AAE5327164918215032281814417873882917717
ABG877221720241417911754513669718131011
ABK11329113420883039816776672249656442265819536220566229
AIA3193132531261679716991512129892523827
AMS69651917167617671275201057466413
API65914152117910109334594367614146
AQU5317910266610129551211647113023917
ARS
ASC4415651513951968669498385715
ASP434102613187818781261119753361354
BDV632811102947125129591595101437271016
BEL954815630812146131310820129111548251314
BFE1464919113381314721171311251910151949221619
BFO
BLC421614288355114290395637861039299121947955101110795490
BMT8845101384161110813861675747355
BNG44254141589101310271611731062515720
BOU148367288111917856111514874915181517
BOX11525191922823232320181433156121346211513
BRW604843198999214064178410761471674684138202301236177178838282
BSL135310182241610911961561775481516913
CBB6024293221934438383727573847816122412119525217613114672
CLF73281118275866111471312116101429251223
CMO5433218293131256437491513300131146831292854264743529405263
CNB63410237109222771013710179104211151110
CSY
CTA5123122512175111678106917774291654
CZT7522121376141178141010206849351059
DLR12649132651212111084971586471415614
DOU104481217337985161291014136111733291426
DRV9398477452822336872918241822344341434130479584110
EBR6329182326515128127915131210102227241121
ESK146310192744151510922181713222610192639282036
EUA
EYR1312410277172633241612656148977178811
FCC8457142561921021311511511510010815369637732333112290717287
FRD14449242262411871491491414891419131317
FRN10925102592316161064312865471312911
FUR6327111228471151211510148591334261118
GCK
GDH2820104210410767474784851361568649130147115151361219124101
GNA26111120884121989115121874456756
GUA19814152823301361164865144442471512
GUI3317413207382063671061065106917
GZH71591214142413126668751362527233
HAD94210152531696714118914167141826241328
HBK45336101958119248751665982914919
HER34226101531075173541485882412818
HLP1063714531711141019181313241410121648201417
HON3251114171311811102342936369985
HRB74271182949147118511168591437261115
HRN4627467112661871181281569515158528578573576613922122732
HUA1044141820411761117275544334241342732121010
HYB
IPM
IQA3527124441044915011090641451381681486191786611090126586391
IRT5121711161115139199131510122297974448
IZN
KAK49151214121512108669761364425669
KDU411882518241171666106817652161264
KMH
KNY491112151015121286610761463526557
KOU632913891433158161867311121512567
LER14436191540151316820161717232415252141281719
LRM53118182119892098126917643310484
LVV84371262851112810961220109101338261014
LYC
LZH4457131193131411811941575638563
MAB
MAW
MBO33279518541528116615954106107816
MCQ222618584210853320601169197334108571202447038302725231318
MEA4211923655824539342010212177332525342122242518355252
MGD
MID
MMB6131513201410101413781298166464571414
NAQ147921813229817824636120622046425235474666591091331336243104
NCK6426982748137118511157581234231115
NEW24144725323535252186991715149101411212529
NGK95281511326911715148822128131745271419
NUR1353418202772023172420211730188141047201415
NVS8381622108151623151311861897778766
OTT19541021322030321491391816181116212827112329
PAF1610491632144142213101411123420717223724634
PAG
PEG
PHU721131720173016131010797516837310344
PPT52291319141210792244993107711315
PST
QSB842616625582412124615187781136261217
RES34242354685120255931447928545641461151029383407536
SBA453129546640245283512445263549556159505252505749
SFS
SHU
SIT261382039364013315963344819132324149241312172333
SJG732611106143458296811241115554
SOD971272720612324685569562741426040212518521515043149
SPT63188182627551010512119561022181021
STJ124311121314239189181613810191326233481417
SUA
TAM43164102281117121042161185682415920
TAN
TDC
THL36221965366426353240212334537459147115907218225020
THY74271092959158138613178691437251217
TRW11631018156134391010661314677131189
TSU45245112247101420143615949826151022
TUC111038626714131410655111284371615814
UPS115341514328122010211818132516814104319139
VAL9419162732885714108611177161520211228
VIC1915362827283820203765131110713129171722
VSS65281479124212672113771714993914
WNG14639171334712128181711824179152051261822
YKC87421970383181334171124985511211156301655267585550589570