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Friday, June 22, 2012

After the Earthquake

On Tuesday evening June 19 2012, an earthquake which occurred at around 8:53 pm local Australian Eastern Standard Time, had an epicentre near Moe around 120 km south-east of Melbourne, and was felt as far away as Wodonga on the state's border and the city of Ballarat west of Melbourne.

According to media reports, Victoria's buildings have come through the state's biggest earthquake in more than a century relatively unscathed.

Measuring 5.3 on the Richter Scale, the earthquake equalled the largest ever recorded in the state, and was 10 km beneath the surface.

On the following morning, I did not notice any unusual HF propagation here in Mont Albert, 15 km east of central Melbourne.

However, solar activity had plummeted to a very low level by June 21, and the daily equivalent smoothed sunspot number had fallen to only 41.

It is not known in scientific circles whether this depressed level of solar activity was associated with the earthquake!

Propagation continues to be very good during our mid to late-morning window, with considerable activity observed on 9 MHz between 0030 and 0230. This summary of key occupancies of June 21 may be of interest, between 0030 and 0100, unless stated otherwise.

9390 UZBEKISTAN FEBA-Tashkent, Bangla
9420 GREECE VOG Greek
9430 MOLDOVA VOR-Kishinev Russian
9520 GERMANY R. Yatra Wertachtal *0030 ME languages
9520 ROMANIA RRI Spanish 0200-0230
9525 ROMANIA RRI Romanian 0100-0130
9535 SPAIN REE Spanish
9560 CANADA KBS-Sackville Spanish/English 0200-0230
9570 ALBANIA CRI-Cerrick English
9580 VATICAN VR-SMG *0025 Urdu
9580 CUBA CRI-Havana English 0100-0130
9590 CHINA CRI-Kashi Spanish
9595 CHINA CRI-Kashi Spanish 0200-0230
9605 USA WHRI English 0100-0130
9615 IRAN VOIRI Tajik 0200-0230*
9620 COSTA RICA REE Spanish
9710 CHINA CRI-Kashi Portuguese
9780 CHILE CVC-Santiago Spanish
9800 CHINA CRI-Kashi Spanish
9800 RUSSIA VOIRI-Krasnodar English
9835 MALAYSIA RTM-Kajang Malay
9855 SRI LANKA VOA-Iranawila English
9855 TAJIKISTAN RFA-Dushanbe Tibetan 0100-0130
9860 USA WHRI English 0200-0230
9870 INDIA AIR Nat Net
9885 SRI LANKA VOA-Iranawila Tibetan
9925 GERMANY V. of Croatia, Wertachtal, Croatian

Regards from Melbourne!

Bob Padula










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