Account of an Earthquake at Hafodunos Near Denbigh. By John Lloyd, Esq. F. R. S. in a Letterto Sir Joseph Banks, Bart. P. R. S.Author(s): John LloydSource: Philosophical Transactions of the Royal Society of London, Vol. 71 (1781), pp. 331-333Published by: The Royal SocietyStable URL: http://www.jstor.org/stable/106527 .

Accessed: 15/05/2014 23:45

Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp

.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact support@jstor.org.

.

The Royal Society is collaborating with JSTOR to digitize, preserve and extend access to PhilosophicalTransactions of the Royal Society of London.

http://www.jstor.org

This content downloaded from 194.29.185.222 on Thu, 15 May 2014 23:45:09 PMAll use subject to JSTOR Terms and Conditions

XV]I. 24C¢Otlt of an Eartkn'e at FIafodullos near Delalzigt7.

By John LlonZdS Ji/.^7. F^.RS,in a T>etter to Sir Jofel)h

n,, sd,-t. P. 1). s.

Read At?;til 5, I 78 1 *

I-IatocilnrJs near Denbigh, t)E;RR SIR lAcc. 3Iv I7gX

T tPON tllei2gtlu dtlYy of laI} AuguR, at 811. 37' 3o', I tg- Ws1S fittillg on Sy 'i bedFfldC aIld hOal-d a rUsnl)lil'ig

sloife, as if at a dlRrlilce. the Coutld feetlaed to appronchArne, atld. wtilen it ssras greate{t thc I)ed :roclied alld lhook fo much that I corlld bcarcely kee? my feat. s I cotlld Ilave no doubt of lts I)eillg an eartllquake, alld itlantly loolied at tny l)arometery wllich is of Mr. DE LUC S collEruEiotl; iSt Ilood fclt ?v9.57 iIlches Attached thermometer fi 5°e ZI4LIC lzarotneFer had 13een llatioIaaly xleslrly for tlle thr.ee preceding days, and did llot feem to be affeAed :Xvith the Illock. The rnolilillg sras relzlarkal)ly fiI}eS axld not a flngle cloud to le feen >%70 of nzy Ilfters ancl a getltleman were walking upon tlae telr;.ce in ttle garden ty the fide of a wall: they a11 perfCeived the Iltifie at fir{} aS if tit a great dill<lIlce; I)ut whell it svas grenteIi tTley perceived t11e wall to AulkeS thougtl taey di<d 1l0t oblerve arly Slgitc5,tiOIl u<der their fee+. As ttac,y were -vaiklngs (8tlcl obServed tlle Sl30t srilCll.

w This honfe is btlilt llpon the fide of a lock; arlal my bed-chamber, tIlorlgl, up two I)ail of lEairs, is oll a gwellnd-ilcor, thE fiOCln iS llot Aore tlaan one foct from the folid tock in my beti"thanl-be..

t-lley

E 33I ]

This content downloaded from 194.29.185.222 on Thu, 15 May 2014 23:45:09 PMAll use subject to JSTOR Terms and Conditions

gt it. ttes¢s Acrt f x they firft heard tlle found, and the fpot they came to then lt ceaSed I was enabled >o aCcertain its duratiotl pretty exaFtlys and Iind it to have 1zeen firotu fifEeetl to eigiltten feconds} 1ts cou-Se svas neal y fiotu Woutiw-eall to north-NveA* Sio:lle other perfons in our houle >Wrceiv-ed a dou';31c ffiock, and this has been obi:erved by tnatly whe-ilt tt itl other places It was i1t at

Flitlt by Mt-s. SEABIAN and 1ler dauglztery vvho ob^titoved tlle cups -rattled UpOtl tlle cers aS tl-ley fat at br&aLfaR. Mrv PEssAnrsS fhmilyS at Donv<ing7 fancied that an empty jwagz gon vYas coming into the lJack-courtj which is paved It was hrongly felt at LlotirwrA by the whole townX atid part of OI5t NV¢d1l was fiUIlg dOwil. At Carnarvon (which is iol tile Illnze parallel o:f latitude as thxs placeS 53 ot) tIle {hocl was very {ligllt.- It svas perceived itl many p2Ct5 about Cotlway fi

but llot at lilL 1oy any eIac itl tosrtn; Sir HttsIff \VILLIAMS felt it rery Rlotzgty at his houi near BeauXnarise XAt our friend Mr- DAVIES Ss itl that rosvn a door clapped backwards and irwards *iveral tianesf aIld at ilLord BULKELEY'S IeatS BownPhillS the family were much alarmed it was fo viAolent. It was flrongly Xlt at HolyheadS and at an eminent Ibilciterss in the illand of AngleSey the defks befire ivetial clerks in his office IHQQK fio

that they cotild ner writei It was firongly pyrecived at Mra BIT%MAURICE Sa At Lleweny-hall in the VaTe of Cl;vyd and itl IEveral other places itl that Vale; All the pe-rlirlIdla i.tl Caru narvconthire called Llull, furrounded>by St. Georges Channelj was thook very mucl There have been tsro {hoclis fince tills 1 have been cleiribing; A5r. rNsNtr filt one; but I was not {Llltlble of either TI1e titnes it was iIt at diir very tnuch or} ACCOuilt Of the variations ill the iveral dials Sonl svhewce the clocks are regulated; but T a1n rery exadt as to my own tinej having tlle dc1y precedilrg tlle earthqualref and that very dayf

-afcertairled

This content downloaded from 194.29.185.222 on Thu, 15 May 2014 23:45:09 PMAll use subject to JSTOR Terms and Conditions

S;arthfuake at Hafodllllos rear Denlgh. 333-

afcertained my time by equal altitusles? taken with one of WIr BIRD'S aRrotlotnical qundrants of one foot raclius. As ev>ry pl-lellomellon of tllis killci is intereiRing, yon may, perlaapsy w;{h to cotumutwicate tllis accouilt to the Royal Society; whicil you are welcome to do, if you thillk it worth the attention of fo illtlfEriou.s a body.

l have the llotlour to lJen &ce

Vo. LXXIf y y

This content downloaded from 194.29.185.222 on Thu, 15 May 2014 23:45:09 PMAll use subject to JSTOR Terms and Conditions