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 1991-07-13
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
AAE
ABG
ABK
AIA
AMS7139149111020351424492665353419469352531405015
API
AQU
ARS
ASC
ASP
BDV
BEL
BFE23152135191252431203611373202168307397715859521425346
BFO
BLC881091764621073272024914249213073493712294941372739196189377687059
BMT
BNG
BOU591421379463669459644293227584826618672924
BOX
BRW1115717426516711214248940013418051029514314129116881302298220190333181
BSL6123456264933411226432432242652351994649208
CBB1126295143733991765274497733524912466194402722563544366678337
CLF523710551317510232939631939322812812153
CMO31618835899167113334231421322887108748646186642282713061195182123112
CNB586156771022322268462252304357121314445510
CSY
CTA
CZT111513121289182113201822511038226176252640642516
DLR610264217610423917152014251533363918174340287
DOU
DRV801783162991388212123310714312724825385103171257142151956516818473
EBR
ESK1991628278327920183885135130320103973135201005126
EUA
EYR
FCC136113168420892612806835552353845151765135656881217394496393662216119118
FRD6426191111525205630342314282897481515511098145
FRN781112425181222123226111326103112161393813
FUR
GCK
GDH7517310912512610419886674840160167211973281361842472651121251857067
GNA
GUA36132283849461588711201245138109
GUI
GZH
HAD95171912126152791720427071571377318121242328
HBK
HER
HLP
HON3461354514181210251410126394115151661210
HRB
HRN
HUA
HYB
IPM
IQA
IRT
IZN
KAK97212519101914196263423292725483479922116
KDU
KMH
KNY
KOU
LER70334059672613514685409210526935653911415632571332706274
LRM
LVV
LYC
LZH
MAB
MAW
MBO
MCQ
MEA286122815939180186490990615413346453105210131119799226899247242336101
MGD
MID
MMB
NAQ217171118163662703076338762194053432533023335435571099148156114611329136
NCK
NEW16263467271625142208274150287192229309186191514921271327371
NGK
NUR4721343847118244772431862132611175526772979098144343121160
NVS
OTT1918251195175841164170480144142146116139258251110864712217112637
PAF208201814108111929228178232177381439218849120129316160
PAG
PEG
PHU
PPT7791311911213023232671410143014111426211411
PST
QSB
RES
SBA
SFS
SHU
SIT29459321147675457326280297364915104050910729893196861641448173
SJG337171173141666197761813148101917115
SOD16422133436795633747193232158721236375293412102056011999423351336101
SPT
STJ24242033082164521337314210013012519114830945128562701522885645
SUA
TAM
TAN
TDC
THL64396064976669104974351535052641052422076092195716843
THY426410451494624373049223431225917123
TRW
TSU
TUC157432312810710126934232061213171910
UPS
VAL
VIC14344855246151121332711443852019522614122383342026866049
VSS
WNG
YKC