【香港輕新聞】上星期，美國阿拉巴馬州（Alabama）有不少民眾聲稱聽到神秘巨響，更有人以為發生地震或爆炸。據統計，今年全球各地已至少有64單類似的報告，這巨響更被稱為「Bama Boom」。不過，至今仍未有專家知道確實原因，引起不少猜測。

今年多次有民眾表示聽到巨響

這個被稱為「Bama Boom」的神秘巨響，最近愈來愈頻繁。據指，至今在美國、澳洲、英國等全球各地，已經有最少64單類似的報告。

上星期，美國阿拉巴馬州有不少人聲稱聽到神秘巨響，更有人以為發生地震或爆炸。

Has anyone heard a loud explosion in west Blount County? We’ve recieved several calls between Spunky Hollow Rd and Cannons Crossing. Law Enforcement is currently patrolling the area.

— Blount County 9-1-1 (@BlountCounty911) 2017年11月14日

@spann I heard and felt an incredibly loud boom from inside my home in Moody around 1:40-1:45pm today. Shook the entire house. Any news? Thanks! #boom

— Jeff Harbison (@JeffSellsHouses) 2017年11月14日

@spann has nasa or anyone figured out what the bama boom was yet?

— Michael Henley (@risibleusername) 2017年11月19日

[embed width="" height=""]https://www.youtube.com/watch?v=rIXc5GV9Rew&t=308s[/embed]

專家：不清楚原因

據《太陽報》報導，本月初美國地質調查所（USGS）就在阿拉巴馬州測得巨大聲響，但原因不明。USGS指，當時沒有地震發生，且聲音的分析結果，顯示與地震無關，不清楚為何會有巨響。

當時，美國國家氣象局（National Weather Service，NWS）位於伯明罕（Birmingham）的分部也在twitter上稱，雷達或衛星都未偵測到大型火災或煙霧。NWS表示，根據USGS的資料顯示，當時並沒有發生地震。

「我們沒有確實的答案，只能作出假設。可能是超音速飛機經過，造成音爆巨響；或是最近的獅子座流星雨，有隕石在大氣層中爆炸。」

Re: loud boom heard: we do not see anything indicating large fire/smoke on radar or satellite; nothing on USGS indicating an earthquake. We don't have an answer, and can only hypothesize with you. 1) sonic boom from aircraft; 2) meteorite w/ current Leonid shower?

— NWS Birmingham (@NWSBirmingham) 2017年11月14日

美國太空總署的專家庫克（Bill Cooke）接受美國ABC 3340訪問時表示，飛機音爆、隕石爆炸都有可能是聲音來源，或地面爆炸而產生，但應該與流星雨無關。

這「聲響」有什麼可能性？

由於現時仍沒未有人能作出合理解釋，引起不少猜測。日前，《每日郵報》列出今年內的報稱有神秘巨響的報告，並綜合了各個可能性。

•  聲爆（Sonic booms ）
• 軍事活動／演習（Military exercises）
•  引爆（Controlled explosions  ）
• 不尋常的天氣（Unusual weather）
• 流星（Meteors）
• 被放大的航空器聲音（Sound amplified from aircraft）
• 外星人（Aliens ）

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November 18 - Michigan

November 19 - Damascus - caused by airstrikes

November 17 - Lapland - caused by meteor

November 15 - Idaho

November 14 - Alabama

November 8 - Tennessee

November 4 - Oregon

November 3 - Minnesota

November 1 and 2 - New Jersey and San Diego

October 27 - Eyre Peninsula - caused by meteor

October 25 - New Jersey

October 20 - British Columbia

October 17 - North Carolina

October 10 - Detroit

September 25 - St Ives

September 22 - Temple Terrace, Florida

September 17 - Maryland, Pennsylvania, New York, Virginia, Delaware, New Jersey, Ohio and Massachusetts - caused by meteor

September 7 - Moranbah, Australia

May 30 - Tauranga, New Zealand

May 26 - Kent

May 24 - Texas

May 19 - Massachusetts

May 16-17 - Lincolnshire

May 13 - Ontario - caused by earthquake

May 12 - Tennessee

May 11 - Abergavenny, Wales

May 7 - Florida - caused by secret military mission

April 25 - San Diego

April 17 - Michigan

April 15 - Michigan

April 9 - Maine

April 3 - Texas

March - Vermont

March 27 - Cornwall

March 26 - Arizona

March 25 - Gordonvale, Australia

March 22 - Wisconsin

March 13 - Virginia - caused by earthquake

March 12 - New York

March 11 - Kentucky

March 5 - Montreal

March 2 - Nottingham

February 27 - Louisiana

February 13 - Ohio

February 12 - Indiana

February 10 - Pennsylvania

January 30 - New Orleans

January 30 - Washington D.C

January 29 - Maryland

January 24 - San Diego

January 20 - Swansea

January 19 - New Orleans

January 18 - North Carolina

January 17 - Canterbury

January 16 - Beddgelert, Wales

January 16 - Greater Manchester

January 13 - Marseilles

January 12 - North Yorkshire

January 6 - Louisiana

January 6 - Oregon

January 5 - Liverpool

January 4 - Missouri

January 4 - Washington

January 3 - Connecticut

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https://youtu.be/QQeBcrGa6Qw