大象传媒

Bidh seiche a鈥� nochdadh ann an Loch Nis bho 脿m gu 脿m. Nise, ma tha sibh a鈥� leughadh seo, gun a bhith ag 猫isteachd ris, tha eagal orm gum bi sibh a鈥� smaoineachadh gu bheil mi a鈥� ciallachadh 鈥榮eiche鈥� 鈥� craiceann beathaich. Ach chan eil. Ged a tha an aon litreachadh orra, tha mi a鈥� ciallachadh an fhacail seiche ann am Fraingis na h-Eilbheis.

听听听听听听听听听听听 Tha cuid a鈥� cumail a-mach gur e seiche as coireach ri cuid de na h-aithrisean mu uilebheist Loch Nis. 鈥橲 e a th鈥� ann tuinn mh貌r鈥� a nochdas ann an loch air s脿illeabh na gaoithe aig aon cheann dheth. Ma bhios a鈥� ghaoth a鈥� tighinn gu l脿idir bhon iar-dheas, bidh i a鈥� putadh an uisge air uachdar Loch Nis thar fad an locha. Nuair a bhuaileas an tonn ceann thall an locha, thig e air ais a-rithist. Bidh uachdar an uisge a鈥� dol air ais 鈥檚 air adhart mar sin airson greis.

听听听听听听听听听听听 Ch矛 sibh an aon se貌rsa rud anns an amar aig an taigh. Putaibh an t-uisge gu aon cheann dheth. Thig an t-uisge air ais a-rithist, agus bidh e a鈥� luasgadh a-null 鈥檚 a-nall bhon 诲脿谤苍补 ceann gu ceann eile an amair airson 霉ine mus tig an gluasad gu cr矛ch.

听听听听听听听听听听听 Chan e a鈥� ghaoth a-mh脿in as coireach ri seiche. Faodaidh crithean-talmhainn an aon rud adhbharachadh. Eadhon ged nach bi daoine a鈥� faireachdainn gluasad anns an talamh, faodaidh buaidh na crithe a bhith ri a faicinn ann an uisge. Anns an Litir an t-seachdain sa chaidh, bha mi ag innse dhuibh mun bhuaidh a thug Crith-thalmhainn Mh貌r Lisbon air d霉thchannan eile anns an Roinn E貌rpa. Bha sin ann an seachd ceud deug, caogad 鈥檚 a c貌ig (1755). Bha seiches ann an grunn 脿iteachan. Am measg sin, bha Loch Nis.

听听听听听听听听听听听 Tha aithrisean ann gun do dh鈥櫭╥rich uachdar an locha gu tr矛 troighean na b鈥� 脿irde na 鈥檔 矛re a b鈥� 脿irde a ruigeadh e le tuiltean an Earraich. Ann an Cille Chuimein, chaidh b脿ta a bha l脿n fiodha a sguabadh 脿s an loch, agus fh脿gail air t矛r. Ge-t脿, 鈥檚 e aon rud nach do thachair gun robh aithrisean ann mu Niseag 鈥� uilebheist Loch Nis 鈥� ann an co-cheangal ris a鈥� chrith-thalmhainn!

听听听听听听听听听听听 B鈥� e sin Crith-thalmhainn Mh貌r Lisbon. Ach d猫 mu dheidhinn crithean ann an Inbhir Nis? No anns a鈥� Ghleann Mh貌r, far a bheil sg脿ineadh chreagan ann ris an canar 鈥淭he Great Glen Fault鈥�? Uill, chan eil iad a鈥� tachairt ach ainneamh. Chan eil Sg脿ineadh a鈥� Ghlinne Mh貌ir mar a tha Sg脿ineadh ainmeil San Andreas ann an California, gu fortanach dhuinn. Mar as trice, bidh meadhan na crithe p矛os m貌r a-mach 脿 baile Inbhir Nis. Ach corra uair bha crithean-talmhainn ann, far an robh meadhan na crithe gu math faisg air a鈥� bhaile.

听听听听听听听听听听听 鈥橲 d貌cha gur iad an d脿 eisimpleir as fhe脿rr dhiubh 鈥� an fheadhainn a thachair ann an ochd ceud deug is sia-deug (1816) agus ann an naoi ceud deug 鈥檚 a h-aon (1901). Tha na h-e貌laichean dhen bheachd gun robh meadhan na ciad t猫 siar air Inbhir Nis agus gun robh meadhan na 诲脿谤苍补 t猫 ann an Dabhach Gairbheach, d矛reach seachd cilemeatair a-mach 脿s a鈥� bhaile.

听听听听听听听听听听听 Agus cuin a thig an ath chrith-thalmhainn a bhuaileas air Inbhir Nis? Uill, 鈥檚 e an fh矛rinn a th鈥� ann nach eil fhios againn.

seiche (Swiss French): oscillating wave; seiche (Gaelic): animal hide; crith-thalmhainn: earthquake; Cille Chuimein: Fort Augustus; Niseag: Nessie.

tha cuid a鈥� cumail a-mach: some people maintain; as coireach ri cuid de na h-aithrisean mu uilebheist Loch Nis: responsible for some of the reports about the Loch Ness monster; tuinn mh貌ra: big waves; air s脿illeabh na gaoithe aig aon cheann: because of the wind at one end; a鈥� putadh an uisge air uachdar Loch Nis thar fad an locha: pushing the water on the surface of Loch Ness along the length of the loch; ceann thall: far end; air ais 鈥檚 air adhart: back and forward; faodaidh buaidh na crithe a bhith ri a faicinn: the effect of the quake can be seen; tr矛 troighean na b鈥� 脿irde na 鈥檔 矛re a b鈥� 脿irde a ruigeadh e: three feet higher than the highest level it would reach; tuiltean an Earraich: Spring floods; far a bheil sg脿ineadh chreagan: where there is a geological fault; chan eil iad a鈥� tachairt ach ainneamh: they only happen rarely; bidh meadhan na crithe p矛os m貌r a-mach 脿: the epicentre of the quake is a good bit outside.

a鈥� luasgadh a-null 鈥檚 a-nall bhon 诲脿谤苍补 ceann gu ceann eile an amair: oscillates from one end of the bath to the other. Although we think of 诲脿谤苍补 as meaning 鈥渟econd鈥� eg an 诲脿谤苍补 latha dhen mh矛os (the second day of the month), th脿inig i san 诲脿谤苍补 脿ite (she came in second place), it can be used in the above manner to meaning 鈥渢he first considered of two things or people鈥�, used in combination with 鈥渆ile鈥�. Other examples are: fanaidh an 诲脿谤苍补 neach air l脿rach na tubaist, fhad 鈥� s a gheibh an neach eile taic (the first person will remain at the site of the accident while the other person gets help); c霉m thusa an 诲脿谤苍补 lethbhreac, agus bheir mise leam an lethbhreac eile (you keep one [the first] copy and I鈥檒l take with me the other copy). But note also the following usage in the Litir: gun robh meadhan na ciad t猫 siar air Inbhir Nis agus gun robh meadhan na 诲脿谤苍补 t猫 ann an Dabhach Gairbheach (that the epicentre of the first one was west of Inverness and that the epicentre of the second one was in Dochgarroch). Here I used ciad and 诲脿谤苍补 rather than 诲脿谤苍补 and eile because they represent two events separated by time rather than a choice of two co-existent objects.

Ged a tha an aon litreachadh orra: although they share the same spelling.

听

Tha 鈥淟itir do Luchd-ionnsachaidh鈥� air a maoineachadh le MG ALBA