Earthquake Costa Romagnola meridionale (Rimini, Forli-Cesena), Magnitude ML 2.2, 21 December 2015 time 23:10:51 (Timezone Italy)

A magnitude ML 2.2 earthquake occured in region: Costa Romagnola meridionale (Rimini, Forli Cesena), on

21-12-2015 22:10:51 (UTC)
21-12-2015 23:10:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0660, 12.7070 at 16 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Display location by

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).

Municipality	Region	Distance (km)	Inhabitants	Cumulative Inhabitants
Riccione	RN	8	34965	34965
Misano Adriatico	RN	10	13014	47979
Rimini	RN	11	147750	195729
Gabicce Mare	PU	12	5781	201510
Cattolica	RN	12	17125	218635
Coriano	RN	14	10502	229137
San Giovanni in Marignano	RN	14	9417	238554
Gradara	PU	15	4835	243389
San Clemente	RN	16	5577	248966
Morciano di Romagna	RN	18	7045	256011
Tavullia	PU	19	8003	264014

Municipalities with at least 50000 inhabitants

An earthquake occurred to

11 Km E of Rimini (147750 inhabitants)

24 Km NW of Pesaro (94582 inhabitants)

35 Km NW of Fano (60888 inhabitants)

38 Km E of Cesena (96758 inhabitants)

56 Km E of Forlì (117913 inhabitants)

56 Km SE of Ravenna (159116 inhabitants)

70 Km E of Faenza (58541 inhabitants)

82 Km NW of Ancona (100861 inhabitants)

85 Km E of Imola (69797 inhabitants)

94 Km NE of Arezzo (99543 inhabitants)

Recent and historical seismicity

Not available maps for this sismic event.

Seismic hazard

Not available maps for this sismic event.

Shakemap

Not available maps for this sismic event.

Felt maps

Not available maps for this sismic event.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Bulletin Rev1000	ML 2.2	2015-12-21 22:10:51	44.0658	12.7068	16	2016-02-19 13:23:08	Bollettino Sismico Italiano INGV	23501591
Reviewed Rev100	ML 2.1	2015-12-21 22:10:52	44.0425	12.682	16	2015-12-21 22:25:04	Sala Sismica INGV-Roma	22777691

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2015-12-21 22:10:51 ± 0.19
Latitude	44.0658 ± 0.0099
Longitude	12.7068 ± 0.0150
Depth (km)	16 ± 2 (from location)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	1000 -> BULLETIN-INGV
Event type	earthquake
Origin ID	23501591

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	1380
Semi-minor axis of confidence ellipse (meter)	119
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	230
Circular confidence region, given by single value of horizontal uncertainty (meter)	1380.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	208
Number of associated phases, regardless of their use for origin computation	37
Number of defining phases	37
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.39
Epicentral distance of station closest to the epicenter (degree)	0.15738
Epicentral distance of station farthest from the epicenter (degree)	1.60889
Number of stations at which the event was observed	25
Number of stations from which data was used for origin computation	25

Magnitudes information

ML:2.1

Field	Value
Value	2.1
Uncertainty	0.2
Num. used stations	14
Type of magnitude	ML
Reference to an origin	22777691
Agency	INGV
Autore	Sala Sismica INGV-Roma
Time of creation (UTC)	2015-12-21 22:25:04

ML:2.2

Field	Value
Value	2.2
Uncertainty	0.3
Num. used stations	21
Type of magnitude	ML
Reference to an origin	23501591
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2016-02-15 08:42:48

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Takeoff_angle	Residual	Weight
IV.PII.HHZ.	2015-12-21T22:11:21.20	0.6	undecidable	manual	P	258	178.5879		1.1	24
IV.SMA1.EHZ.	2015-12-21T22:11:20.05	0.6	undecidable	manual	P	162	167.1105		1.37	22
IV.ATVO.HHZ.	2015-12-21T22:11:16.01	0.3	undecidable	manual	S	198	79.5648	95	0.51	62
IV.BADI.EHZ.	2015-12-21T22:11:13.97	0.6	undecidable	manual	S	211	71.9724	95	0.5	42
IV.SSFR.HHZ.	2015-12-21T22:11:13.72	0.6	undecidable	manual	S	175	70.0743	95	0.74	39
IV.SFI.EHZ.	2015-12-21T22:11:13.55	0.3	undecidable	manual	S	256	70.8735	95	0.35	65
IV.ASSB.HHZ.	2015-12-21T22:11:10.66	0.3	undecidable	manual	P	182	113.5974	93	-0.03	63
IV.PARC.HHZ.	2015-12-21T22:11:10.84	0.6	undecidable	manual	S	219	59.5959	96	0.67	40
IV.PIEI.HHZ.	2015-12-21T22:11:10.41	0.6	undecidable	manual	S	193	60.3951	96	0.01	47
IV.ATCC.EHZ.	2015-12-21T22:11:08.37	0.1	undecidable	manual	P	183	97.8243		0.1	87
IV.SNTG.HHZ.	2015-12-21T22:11:07.60	0.3	undecidable	manual	P	168	91.8414	94	0.25	64
IV.NARO.HHZ.	2015-12-21T22:11:07.86	0.3	undecidable	manual	S	191	51.5151	98	-0.18	69
IV.EL6.EHZ.	2015-12-21T22:11:07.74	0.3	undecidable	manual	P	159	87.6456	94	1.05	48
IV.MPAG.EHZ.	2015-12-21T22:11:07.32	0.3	undecidable	manual	S	175	48.618	98	0.04	72
IV.ATFO.HHZ.	2015-12-21T22:11:05.34	0.3	undecidable	manual	P	188	78.366	95	0.08	68
IV.FSSB.HHZ.	2015-12-21T22:11:05.63	0.6	undecidable	manual	S	172	41.7249	100	0.17	48
IV.LMD.HHZ.	2015-12-21T22:11:05.58	0.3	undecidable	manual	P	271	79.6647	95	0.11	67
IV.ATVO.HHZ.	2015-12-21T22:11:05.17	0.1	undecidable	manual	P	198	79.5648	95	-0.28	86
IV.ASQU.HHZ.	2015-12-21T22:11:04.99	0.1	undecidable	manual	P	248	79.1652	95	-0.4	84
IV.BADI.EHZ.	2015-12-21T22:11:04.08	0.3	undecidable	manual	P	211	71.9724	95	-0.21	66
IV.CRE.HHZ.	2015-12-21T22:11:04.81	0.6	undecidable	manual	P	231	78.1662	95	-0.43	42
IV.SFI.EHZ.	2015-12-21T22:11:03.57	0.1	undecidable	manual	P	256	70.8735	95	-0.56	82
IV.SSFR.HHZ.	2015-12-21T22:11:03.82	0.1	undecidable	manual	P	175	70.0743	95	-0.18	89
IV.ATPI.EHZ.	2015-12-21T22:11:03.95	0.1	undecidable	manual	P	200	72.4719	95	-0.41	85
IV.PIEI.HHZ.	2015-12-21T22:11:02.02	0.3	undecidable	manual	P	193	60.3951	96	-0.49	64
IV.PARC.HHZ.	2015-12-21T22:11:01.83	0.1	undecidable	manual	P	219	59.5959	96	-0.56	83
IV.RSM2.HHZ.	2015-12-21T22:11:01.21	0.6	undecidable	manual	S	236	25.2525	111	0	50
IV.BLLA.EHZ.	2015-12-21T22:11:00.99	0.3	undecidable	manual	S	294	20.6682	117	0.89	56
IV.MPAG.EHZ.	2015-12-21T22:11:00.30	0.1	undecidable	manual	P	175	48.618	98	-0.42	89
IV.NARO.HHZ.	2015-12-21T22:11:00.62	0.3	undecidable	manual	P	191	51.5151	98	-0.53	64
IV.CPGN.EHZ.	2015-12-21T22:11:00.04	0.1	undecidable	manual	P	227	42.624	100	0.24	93
IV.PE3.EHZ.	2015-12-21T22:10:59.65	0.1	undecidable	manual	P	202	44.3223	99	-0.41	89
IV.PESA.HHZ.	2015-12-21T22:10:59.80	0.3	undecidable	manual	S	142	17.4714	123	0.44	69
IV.FSSB.HHZ.	2015-12-21T22:10:59.31	0.1	negative	manual	P	172	41.7249	100	-0.35	91
IV.PESA.HHZ.	2015-12-21T22:10:56.21	0.1	positive	manual	P	142	17.4714	123	0.08	100
IV.RSM2.HHZ.	2015-12-21T22:10:56.83	0.1	negative	manual	P	236	25.2525	111	-0.38	93
IV.BLLA.EHZ.	2015-12-21T22:10:56.95	0.1	undecidable	manual	P	294	20.6682	117	0.39	93

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.ASQU.HHN.	ML:1.8	0.00009625000000000001	0.4	AML	other	m	2015-12-21T22:11:18.58
IV.ASQU.HHE.	ML:1.8	0.0000913	0.98	AML	other	m	2015-12-21T22:11:23.96
IV.ASSB.HHN.	ML:2.4	0.0001895	0.32	AML	other	m	2015-12-21T22:11:28.30
IV.ASSB.HHE.	ML:2.2	0.0001265	0.34	AML	other	m	2015-12-21T22:11:28.61
IV.ATCC.EHE.	ML:2.5	0.0003145	0.34	AML	other	m	2015-12-21T22:11:24.40
IV.ATCC.EHN.	ML:2.4	0.00027150000000000004	0.66	AML	other	m	2015-12-21T22:11:24.58
IV.ATFO.HHE.	ML:2.2	0.00023549999999999998	0.48	AML	other	m	2015-12-21T22:11:19.62
IV.ATFO.HHN.	ML:2.3	0.0002575	0.68	AML	other	m	2015-12-21T22:11:19.54
IV.ATPI.EHN.	ML:1.9	0.00013225000000000002	1.24	AML	other	m	2015-12-21T22:11:15.63
IV.ATPI.EHE.	ML:1.9	0.00011285	1.44	AML	other	m	2015-12-21T22:11:16.70
IV.ATVO.HHE.	ML:2.2	0.00020050000000000002	0.66	AML	other	m	2015-12-21T22:11:17.79
IV.ATVO.HHN.	ML:2.1	0.000177	0.76	AML	other	m	2015-12-21T22:11:18.14
IV.BADI.EHN.	ML:2.2	0.0002375	0.4	AML	other	m	2015-12-21T22:11:15.46
IV.BADI.EHE.	ML:2.1	0.0001985	0.88	AML	other	m	2015-12-21T22:11:16.95
IV.CPGN.HNN.	ML:2.0	0.0003095	1.4	AML	other	m	2015-12-21T22:11:10.10
IV.CPGN.HNE.	ML:2.1	0.0003735	0.26	AML	other	m	2015-12-21T22:11:10.42
IV.CRE.HHN.	ML:1.9	0.00010449999999999999	1.28	AML	other	m	2015-12-21T22:11:24.11
IV.CRE.HHE.	ML:1.7	0.00006385000000000001	0.4	AML	other	m	2015-12-21T22:11:26.11
IV.FSSB.HHN.	ML:2.5	0.0009885	0.82	AML	other	m	2015-12-21T22:11:06.79
IV.FSSB.HHE.	ML:2.4	0.0008755	0.24	AML	other	m	2015-12-21T22:11:07.43
IV.LMD.HHN.	ML:2.1	0.00016999999999999999	0.44	AML	other	m	2015-12-21T22:11:19.82
IV.LMD.HHE.	ML:2.1	0.0001645	0.58	AML	other	m	2015-12-21T22:11:18.66
IV.MPAG.EHE.	ML:2.3	0.0004885	0.22	AML	other	m	2015-12-21T22:11:07.59
IV.MPAG.EHN.	ML:2.2	0.00040249999999999997	0.46	AML	other	m	2015-12-21T22:11:08.77
IV.NARO.HHE.	ML:2.1	0.0002865	0.44	AML	other	m	2015-12-21T22:11:07.99
IV.NARO.HHN.	ML:2.0	0.0002215	1.04	AML	other	m	2015-12-21T22:11:10.55
IV.PARC.HHN.	ML:2.1	0.0002375	0.2	AML	other	m	2015-12-21T22:11:11.88
IV.PARC.HHE.	ML:2.0	0.00022	0.16	AML	other	m	2015-12-21T22:11:11.81
IV.PE3.EHE.	ML:0.5	0.000011589999999999999	0.08	AML	other	m	2015-12-21T22:11:08.79
IV.PE3.EHN.	ML:2.3	0.0006454999999999999	0.56	AML	other	m	2015-12-21T22:11:12.66
IV.PESA.HHE.	ML:2.8	0.00479	0.26	AML	other	m	2015-12-21T22:11:00.28
IV.PESA.HHN.	ML:2.7	0.003185	1.3	AML	other	m	2015-12-21T22:11:00.80
IV.PIEI.HHN.	ML:2.4	0.0004585	0.34	AML	other	m	2015-12-21T22:11:13.37
IV.PIEI.HHE.	ML:2.4	0.00046599999999999994	0.26	AML	other	m	2015-12-21T22:11:13.73
IV.RSM2.HHE.	ML:2.1	0.000653	0.62	AML	other	m	2015-12-21T22:11:01.95
IV.RSM2.HHN.	ML:2.0	0.0005304999999999999	1.2	AML	other	m	2015-12-21T22:11:02.39
IV.SFI.EHN.	ML:2.0	0.0001565	0.96	AML	other	m	2015-12-21T22:11:15.51
IV.SFI.EHE.	ML:1.8	0.00009385	1.4	AML	other	m	2015-12-21T22:11:19.69
IV.SNTG.HHN.	ML:2.2	0.000154	0.48	AML	other	m	2015-12-21T22:11:26.01
IV.SNTG.HHE.	ML:2.0	0.000121	0.66	AML	other	m	2015-12-21T22:11:26.70
IV.SSFR.HNN.	ML:2.8	0.0010395	0.22	AML	other	m	2015-12-21T22:11:16.29
IV.SSFR.HNE.	ML:2.7	0.000749	0.3	AML	other	m	2015-12-21T22:11:16.60
IV.SSFR.HHE.	ML:2.7	0.0007564999999999999	1.2	AML	other	m	2015-12-21T22:11:16.12
IV.SSFR.HHN.	ML:2.7	0.000851	0.22	AML	other	m	2015-12-21T22:11:16.28

TDMT - Time Domain Moment Tensor

Not available TDMT solution for this seismic event.

Fault Plane solutions in the area

Not available maps for this sismic event.

Download

Type	Description	Link
QuakeML - small	Event, Origin, FocalMechanism	Download
QuakeML - full	Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude	Download
Waveforms	Seismic signals in miniseed + resp format	Download

Earthquake with magnitude of ML 2.2 on date 21-12-2015 and time 23:10:51 (Italy) in region Costa Romagnola meridionale (Rimini, Forli Cesena)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

Origin

Uncertainty

Quality

ML:2.1

ML:2.2