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 1991-01-23
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
AAE
ABG
ABK
AIA
AMS1216243376636244233386911
API
AQU
ARS
ASC
ASP
BDV
BEL
BFE211112323127853334238365
BFO
BLC1151163271841311143342455524434658282039794181
BMT
BNG
BOU111111111111124573511143
BOX
BRW79558528234086155132383962295281821382627
BSL3131211133221271520216869313
CBB665887192214191014182113334628637334494780
CLF111112213726125513221112
CMO635364572233237052142230922181419211911
CNB436544225638643324229999
CSY
CTA
CZT323247642222525251134334
DLR434354334433244312145484107
DOU
DRV139823313212354545957285938742329292429254899137254448
EBR
ESK122011223444235321212134
EUA
EYR
FCC57131117974062442639231910914981018361861
FRD2111111211111410357345445
FRN522112112232111641013115687
FUR
GCK
GDH71912231822135245276038273838413846351926384129
GNA
GUA543734522321121211112245
GUI
GZH
HAD1222132231033754612335232
HBK
HER
HLP
HON174133122122112134117914108
HRB
HRN
HUA
HYB
IPM
IQA
IRT
IZN
KAK8655737636333132312153420
KDU
KMH
KNY
KOU
LER322112234246444622236367
LRM
LVV
LYC
LZH
MAB
MAW
MBO
MCQ
MEA432241451732101418535753547513
MGD
MID
MMB
NAQ8948441512816291511149610891381723668769
NCK
NEW112121112322222463213234
NGK
NUR211112212436422522335347
NVS
OTT1122221252334864832341039
PAF422352129787335442236478
PAG
PEG
PHU
PPT341112333222221031441414861542
PST
QSB
RES
SBA
SFS
SHU
SIT322122113113139321025646767
SJG1230111121422911337672632
SOD9521122252362432797111628123245
SPT
STJ32544424956866987777610818
SUA
TAM
TAN
TDC
THL3457775693139111045653711121816
THY111112122333353222112123
TRW
TSU
TUC3212111111211123481223357
UPS
VAL
VIC211223012422422345223478
VSS
WNG
YKC