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 2004-04-21
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
AAE456994234742522222
ABG511438171072686542121411123
ABK157814423517161814201310771085512284177
AIA72234433665384745131381024247
AMS45911153151610574352551592245
API001000100000000000011000
AQU411213157551314155255561592142
ARS
ASC110242272112575713441323221
ASP710242375566443213634128251210
BDV422317188479171883685620143153
BEL5334172010710141712679104621143263
BFE644523251178917171037105830194275
BFO
BLC2599139356268211938262630565899541273965193421
BMT112231011110001110110111
BNG000011101101000000000000
BOU9425251424461531051511920223411010
BOX445724169101715134871298415114283
BRW401162250201232203711098211829824731584161497729
BSL5223249344412413882013715439135
CBB3913915554427913123621382743297010513256118306423
CLF7224201896551122155466723133153
CMO167721131511101212211371624323421231533123210
CNB5172218910924333423675151031183
CSY
CTA926151268534532223534117217106
CZT81182324101616107648343423132344
DLR92231671223927111210181313355119
DOU72242220106661321164496725153264
DRV7937244848352732191419911108111820513618358245
EBR000132111122211111211011
ESK1133526231078614151510976431164276
EUA
EYR211364145544554645866108711711
FCC146412193601392014491323242627521965183191711
FRD421226103554136106716181310161084
FRN119351181234825311116123391744
FUR4223171885511161892576721142143
GCK
GDH2922718120614633616314446714369605153883627132822
GNA14461919510755423251445211534910
GUA51112469963321112312437665
GUI2112106256410127743741332122
GZH101111011110000000100011
HAD8224211787651116158566425123254
HBK41127202181928144466953952121
HER411281015148242319655754962121
HLP733421219513161715771054625164283
HON129835222112122329221231925176
HRB42231519841014171365784619133153
HRN69232349855661627347601848344439253915913617252750
HUA31128623134348761061243325
HYB
IPM
IQA32202514134593738436111649474362616851634731112428
IRT14251624101346876636116210114276
IZN
KAK123211111100000100110111
KDU6122517535435421124239514129
KMH
KNY022211111010000100110111
KOU1112251325912939136382
LER112352627118891411156786335234277
LRM17672520457565222498412624516
LVV423416187812171695611114619123253
LYC
LZH144111920145679512345
MAB
MAW
MBO21139344112488852107952222
MCQ91110242319793412111135191011187618197
MEA1484112116461011207127992910391213584
MGD
MID
MMB122211111010001110110111
NAQ27910617697169331851132617131817163691461225
NCK52231618841012181464784620133253
NEW
NGK6324202295712161894785826173264
NUR635626229611121413541094428155293
NVS9677271216157799868101651175486
OTT422341176710719912713191713948796
PAF44892614141810511536573317214247
PAG
PEG
PHU102111814725556222343263
PPT41155321112112233111442976
PST
QSB31179143142413625512254952242
RES26172019644620161720301619212655449312510557363915
SBA832529533635232121123215192932383137383057317757
SFS
SHU
SIT111112171113869101278912152415329229164
SJG3111622223974631216103911623
SOD65693526151315131711747975321483126
SPT3112159687481614641471662123
STJ33232311661062089412171571699347
SUA
TAM211211663491610447742743122
TAN
TDC
THL432514404037181524253620242348858866703624322924
THY52231518741013171365784619123153
TRW4213151224222223
TSU31124122214122417116321074731211
TUC1041415812349267176112621233810
UPS734525241071010161594895431185284
VAL722422167610599161165422293244
VIC111081071034671046551013626109573
VSS22127524171813313143432116233
WNG7334222496891520123675729183175
YKC897213360382920202112251525205427682737163011