[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 08 10 25 1203UT issued 1219 UT on 08 Oct 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 08 10 25 1203UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    203.3      204.4        1.1
Darwin_(GA)                    nT    113.7      120.3        6.7
Darwin                         nT      9.2       13.9        4.7
Townsville_(GA)                nT   -658.5     -646.4       12.1
Townsville                     nT   -902.1     -890.7       11.3
Townsville_(ICSWSE/BOM)        nT    216.7      228.2       11.5
Learmonth_(GA)                 nT    284.6      290.2        5.7
Learmonth_(SWS)                nT   -983.9     -978.5        5.5
Canberra_(GA)                  nT   -194.7     -175.9       18.7
Hobart                         nT   -442.2     -423.9       18.3

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au