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 2004-04-23
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
AAE39101224323854486310144739715321333710119
ABG7714175
ABK11424630302814145461399518514774113336862945240225158182
AIA5111220111467171715835131311411688251613
AMS2451367619152314103430773511341624236
API
AQU46436754251020143925161435124410121210
ARS
ASC3456698712115222524201481032713410
ASP691014713710331520111839206253739143
BDV47545105431111983115132033145516201311
BEL51010431457382020123412172336168624341412
BFE612116714564626162333202527421610823451716
BFO
BLC24354451254426386211587592511952313911351074956941018360
BMT1313512191015842281613283517910104341669
BNG45551011163414155643361318251233561111
BOU3911107248849482021269103027116816263115
BOX6151381020718514222363932363833158629302016
BRW3310599189101616711810437110696774659569295261363186100182223129122
BSL4891182267241718203957161376713252216
CBB334527562932355650633610220311496104222232848924512989148
CLF465381054321015122912152030165411131312
CMO167989905386334738255412667940354511487452170445883644423
CNB410713159151036112711384818414648681311
CSY
CTA681010412710331421122039184544845146
CZT36128365712913171625232827123414171910
DLR3781172268332820212587201476610242315
DOU6855101156351113113311182534166510131714
DRV4412914412777497656562355131388771356546333265884842
EBR444510141182716162533242630431510159121111
ESK8119513136944151115392426414920131013192420
EUA
EYR48713139141113311582434131591094122196
FCC166069111822511864225826626710124345344814918878294913816912297
FRD4911128145816271385715817161141220312313
FRN37101071738464719211648172912658182914
FUR47545105530101883213131933155414181411
GCK
GDH37312750233723441146315084285151485341238151668170685656
GNA213714106912231817103038188763631266
GUA19132216111451221711611261033556882417
GUI3535788614111119352618918973511811
GZH616101712117104524131228281561383521448
HAD676591176351098309162831178611131514
HBK45751075719126103633914211433661012
HER458457652277153125101012103446711
HLP7127551569412418234016232440169822342217
HON3781246343654168
HRB48635115629102073315121936135416211411
HRN27547285639837482602662052214037366671946339314428824190
HUA3910127223101215122022382664663730253450811
HYB
IPM
IQA243326532227357599239209116101187406191166196141109167442484
IRT71669118152136382013304816111184351568
IZN
KAK87101310471033191412132896454339411
KDU51571210153103016161218341754547311129
KMH
KNY41089951112392216121830127464331047
KOU01187571522410
LER710106810684622151732362746761691011271820
LRM41166101051228151510273921109747414109
LVV67545146730121873012132035156617221513
LYC
LZH91359169141039241310322916815104231767
MAB
MAW
MBO4634796138106213829181014894914611
MCQ820254932211117792041023357920621215731636151119536237
MEA1136482016352811168183692229922681286317251732466735
MGD
MID
MMB7713181361310372218141840141166437101011
NAQ1916911814999476729871241033568109107487393504678815486
NCK4753510452791973115121934135414171411
NEW
NGK6108651245381715113012162538167621321614
NUR61413762087493823364828333557147729461616
NVS4118145101429283520213431111413125481777
OTT512151511127849588875291526352061838554016
PAF3811189151225172116261666282511104337324317
PAG
PEG
PHU620142013148114823121134281761793521757
PPT78410274712205910666951114914512
PST
QSB58966128183214139572391448156413171712
RES535448703842569069436814513912711088189941751251331239174
SBA325152763455443486424539151179596610683503858478057
SFS
SHU
SIT113643281824271354396113175123114433715231625182328
SJG2466411349101013209145985691879
SOD6313020212915215261298416410091136339612144182136141173
SPT45338988259151835212016301344781012
STJ581419121996343861561111027321681224312415
SUA
TAM46348891911941340281218231254681012
TAN
TDC
THL213218562929391083755691921424110155119142836790814350
THY58646115530102193617142040155415181712
TRW3710148163678121229112410107544201411
TSU4564910109251171542351210221433571012
TUC47811721584341192019882224103510212513
UPS61210541667463020284129282854127721421616
VAL5663911773411772891228281596881413
VIC917261072113104666162127191613401516818143125
VSS3789714551216922191111152391171121814
WNG71210751356402212153016202739189823411717
YKC9851065241240144225783672487037760952223346485584244487162