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 2004-04-18
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
AAE333611415026223825181210736634416134
ABG681120119720810101411981510984614137
ABK104102115162543373414192782286335553255849325715175
AIA93691120512181226121081796516517138
AMS5710313234168542641027117141131072
API5589201241013333118351023141010107
AQU63234731610101581216858467515146
ARS
ASC31215536102611413121235783252
ASP11271319167151632918121415118753269
BDV7424476168334566314577516177
BEL9354667191386788981371067202210
BFE12545697248111010167137191312107232312
BFO
BLC5621212043113265314030163074140394679934887871467472
BMT676848142487449916201111992834
BNG22224917102359111821746667311113
BOU865101012123325575871722711416510129
BOX84641396271368112016161814111997292410
BRW35428887748713820557213634362831371231131369111610977725243
BSL833971010201465313775104131241276
CBB4825243120562147471810322075458699109205120711047880
CLF84245931374435553136810613146
CMO19254147321168228127113080159331189267757375273533362622
CNB117791610101817429271314111272481285
CSY
CTA6291319148131032820131313117434433
CZT2322468275223451251071371126188
DLR105398111027196547127383121441075
DOU9445510514869466751971012614166
DRV1206586733069404633271515572217142720293936214218
EBR6324520419158121251316121512817812135
ESK105568137191111146121215930121414719217
EUA
EYR8887141281915115730165313584141469
FCC6414351829123710719918870471469293201335217376046784966
FRD734961385107551558764517815108
FRN654869124233575871019946144877
FUR7424485157324575312578515167
GCK
GDH2514181722251633553746505447178348469652427315128
GNA693317176121632711111415981072455
GUA15381421164113116131091197425132121
GUI322368431710141081310127111485573
GZH57118912416634578111679751834
HAD842561141499126691071961011615165
HBK223234516543111381166657515104
HER2132439144918973137555841383
HLP1054486721910791310111215813107171811
HON316679514163419551136897453
HRB74345671512434886411576617188
HRN25285732337780938851766156356011513329393838694848
HUA2156787135631531132516214934251013106
HYB
IPM
IQA691119124275584714187671104925153468031745164884233
IRT712756623211543556132013910113221
IZN
KAK54119275176223131010128106322712
KDU9541120125191031714121315107642556
KMH
KNY229756720511412101215810743375
KOU313456458581495286122034943
LER96648106239101041512141136111110519197
LRM138611131451414327131014181081072644
LVV95759681613745710671561079191911
LYC
LZH343548132275656814209108921044
MAB
MAW
MBO31326656341916612262420441263473
MCQ811222823461610510971528130111120343614436351618911
MEA2010151522652813890231624647830252416192420233125
MGD
MID
MMB7411115882613224171014139128434711
NAQ4814296118289170921183320181912234010139553534565580
NCK73244661310444875311477615167
NEW127912101618503766815992822715217131915
NGK10434697189810698871781096192110
NUR955396729887122814171215131477232211
NVS9591613615182454751011247811144775
OTT74510111692024425146107121392511181610
PAF14574122115206514765142830927231128244
PAG
PEG
PHU3111891114420955691014209129721045
PPT62671010419182428341142214116812
PST
QSB533487101323941115187811665720217
RES692220293128353524312710393440224330558659391848
SBA152647405035362934311325635552256647433924134329
SFS
SHU
SIT151317151314154974141121704432182456138171418
SJG32255548572538231151954733
SOD44914111217263523920246523532838144852462369745
SPT63235939888133117845810510124
STJ9238121261935991318615723141318913115
SUA
TAM4223578632103517211513527849114
TAN
TDC
THL251523141419283723241542571331327655533536283138
THY743457615126661196413587617188
TRW534569477104215845139111251264
TSU2232486168435121344107610411103
TUC9648810113427564771512618135895
UPS94546562668610221014426111176151910
VAL85345104138713861010720510959134
VIC11891091116524956714882420410175111413
VSS42334642104510674143192043454
WNG1244579720910126138117191012107202312
YKC392545291332559281762711043961622212321494840376561375237