Korff's description suggested that the region of devastation might be greater than that involved in the Tunguska event itself. On his suggestion, a message was sent to William H. Holden, who in 1937 was in the general region with the Terry-Holden expedition of the American Museum of Natural History. That group hiked to the top of Marudi Mountain in 1937 November and reported seeing an area some miles across where the trees had been broken off about 25 feet above their bases, although regrowth over two years in this tropical jungle had made it difficult to define the area affected. Holden confirmed, on returning to New York, that he believed the devastation was due to an atmospheric explosion of cosmic origin. An explorer and author, Desmond Holdridge, also visited the region in the late 1930's and confirmed the suspicion that a comet or asteroid detonation was responsible.
Korff obtained several local reports, the best being from a Scottish gold miner, Godfrey Davidson, who reported having been woken by the explosion, with pots and pans being dislodged in his kitchen, and seeing a luminous residual trail in the sky. A short while later, whilst prospecting, he cam across a devastated region of the jungle he estimated to be about five by ten miles (8 by 16 kilometers), with the trees all seeming to have been pushed over.
Holden was unsure of the origin of the flattening of the forest, and pointed out that similar destruction can result from tornados. Holdridge, however, reported eye-witness accounts in accord with a large meteoroid/small asteroid entry, with a body passing overhead accompanied by a terrific roar (presumably electrophonic effects), later concussions, and the sky being lit up like daylight. A local aircraft operator, Art Williams, reported seeing an area of forest more than twenty miles (32 kilometers) in extent which had been destroyed, and he later stated that the shattered jungle was elongated rather than circular, as occurred at Tunguska and would be expected from the air blast caused by an object entering away from the vertical (the most likely entry angle for all cosmic projectiles is 45 degrees).
There is a report of the Guyanan event, largely derived from the account in The Sky, in the newsletter Meteor News for March 1974. Apparently as a result of that, the publishers (Karl and Wanda Simmons, of Callahan, Florida) had some correspondence with a Mr. F.A. Liems of Paramaribo, Surinam, concerning a possible crater/event at Wahyombo in that country; he gives the location as Lat: 5.25 deg North, Long: 56.05 deg West. The letters date from 1976; apparently Liems died in 1982. In 1990, as a result of Andreev's article in WGN about the Brazilian event, Wanda Simmons sent copies to him, and he kindly sent copies on to me. Various notes/maps/letters are included, but it is difficult to know what to make of them: my impression is that this concerns something that occurred some time ago, not in this century, and it's linkage with an incursion by an asteroid or comet is far from clear.
References:
1) N. Vasilyev, G. Andreev, WGN 17:6, 1989, pp. 247-248.
2) L.A. Kulik, Priroda i Ljudi 13-14, 1931, p.6
3) M.E. Bailey, D.J.Markham, S. Massai, J.E. Scriven, The Observatory 115, 1995, pp. 250-253.
4) Sky and Telescope 44, 1972, pp. 269-272.
5) The Sky, September 1939, pp. 8-10 and p.24.
Below is the wording of the Newspaper article printed in The Daily Herald on March 6, 1931.
Another colossal bombardment of the earth from outerspace has just been revealed.
- MENACE OF METEORS LIKE HUGE BOMBS FROM SPACE
- HURRICANE OF FLAME
- BLAZING BOLTS FIRE FORESTS
- MANKIND'S LUCK
Three great meteors, falling in Brazil, fired and depopulated hundreds of miles of jungle.
News of this catastrophe has only now reached civilization because the meteors fell in the remote S. American wilderness.
It was yet another lucky escape of mankind from an appalling and unrealized peril.
The last great meteor fell in Siberia in 1908. In a district so remote that only last year were details of it's destruction given to the world. Had either of these two meteor falls chanced to strike a city in a densely populated country, frightful loss of life and damage would have been cuased. "A Meteor", Mr. C.J.P. Cave an ex-president of the Royal meteorological Society stated recently "carries in front of it a mass of compressed and incandescent air.
When it strikes the earth, this air "splashes" in a hurricane of fire...The Brazilian meteors are reported (says the Central News) by Father Fidello of Aviano. writing from San Paulo de Alivencia in the state of Amazonas, to the papal newspaper, Osservatore Romano.
BLAZING FOREST The meteors fell almost simultaneously during an amazing storm. Terrific heat was engendered. Immediately they struck the ground the whole forest was ablaze.
The fire continued uninterrupted for some months, depopulating a large area. The fall of the meteor was preceded by remarkable atmospheric disturbances. At 8 o'clock in the morning the sun became blood-red and a penumbra spread all over the sky, producing the effect of a solar eclipse. Then an immense cloud of reddish powder filled the air and it looked as if the whole world was going to blaze up.
WHISTLING SOUND The powder was succeeded by fine cinders which covered trees and vegetation with a blanket of white. There followed a whistling sound that pierced the air with car-breaking intensity, then another and another.
Three great explosions were heard and the earth trembled. The Siberian meteor of 1908 completely destroyed the forest over an area of 70 miles in diameter. It's roar was heard 600 miles away and it's glare maintained twilight all night even in England.
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