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 1991-05-23
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
AMS76445367913897141371458747913
API
AQU
ARS
ASC
ASP
BDV
BEL
BFE16111166571211781842233235129151212243913
BFO
BLC35536239495419212381981231947118235457113311712323425620723373
BMT
BNG
BOU8432423163554971925131031619207
BOX
BRW5554904011968472811357274481189599617035908740516269
BSL13159535333889911241986811481010
CBB2058503827173427862385955816011512726528822945024720418772
CLF3232212461334118744442333
CMO7063503585343935582222447127127952115328475941705074
CNB1685510533544371012156474651313
CSY
CTA
CZT17635151664103779168117695561511
DLR101065234427675616814125107121013
DOU
DRV112139212170116593044467554103871219410810173130143129625884
EBR
ESK45863746844111724598735717118
EUA
EYR
FCC1058375702141533432142148487628532110618632805346120640264271
FRD74522311453232111510111781215813
FRN88532221242332851113132731413
FUR
GCK
GDH1094835656517683147281362191244281151181286421571031001258011470
GNA
GUA774363335222121411224438
GUI
GZH
HAD694456449495131813858611711135
HBK
HER
HLP
HON1032332322222343481011107346
HRB
HRN
HUA
HYB
IPM
IQA
IRT
IZN
KAK121245935769763129136645717115
KDU
KMH
KNY
KOU
LER20112621614114101610848411024411891219505025
LRM
LVV
LYC
LZH
MAB
MAW
MBO
MCQ
MEA301929339659181613593203796668613561111720201006936
MGD
MID
MMB
NAQ13485148798725971771261172737791809213063456593136529544200
NCK
NEW1594131611631697617241221174448173613
NGK
NUR3217866438746235635293931512515575118
NVS
OTT121430511173623203787121497161616572115
PAF37201241694334441126127191310817625228
PAG
PEG
PHU
PPT6573312252135256294576136
PST
QSB
RES
SBA
SFS
SHU
SIT1925221924411462715413956047108907181416246822
SJG55233412341016797653264266
SOD1919034192415211410221018125105357310740393466155194218
SPT
STJ24382121163271314182659206018391223394128744018
SUA
TAM
TAN
TDC
THL5348504951246573571381561831978844177117994544661154836
THY432423586107491391075443453
TRW
TSU
TUC43322121232465681297329116
UPS
VAL
VIC1923912395314968152210141841396172621
VSS
WNG
YKC