TITLE: GCN CIRCULAR NUMBER: 14065 SUBJECT: GRB 121212A: A long GRB detected by INTEGRAL DATE: 12/12/12 09:54:06 GMT FROM: Sandro Mereghetti at IASF/CNR S.Mereghetti (IASF-Milano), C.Ferrigno, E.Bozzo, I.Vovk (ISDC, Versoix), D.Gotz (CEA, Saclay), and J.Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report: a gamma ray burst lasting about 10 s has been detected by IBAS in the IBIS/ISGRI data at 06:56:12 UT of December 12. Its refined coordinates (J2000) are: R.A.= 177.8217 deg DEC.= 78.0257 deg with an uncertainty of 2 arcmin (90% c.l.). The burst has a peak flux of 0,4 counts/cm2/s (20-200 keV, 1-s integration time) and a fluence in the same energy range of about 8e-8 erg/cm2. This burst has also been detected by Swift (Grupe et al. GCN Circ.14064). Due to the significance of the detection below the high confidence threshold, only an Alert Packet of WEAK type was distributed by IBAS in real time (Packet n. 6720). A plot of the light curve has been posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html