Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 04-12-2018 and time 21:11:08 (Italy) in region 2 km E Santarcangelo di Romagna (RN)

A magnitude ML 1.3 earthquake occured in region: 2 km E Santarcangelo di Romagna (RN), on

  • 04-12-2018 20:11:08 (UTC)
  • 04-12-2018 21:11:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0590, 12.4670 at 37 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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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Santarcangelo di Romagna RN 2 22089 22089
Savignano sul Rubicone FC 7 17766 39855
San Mauro Pascoli FC 7 11690 51545
Rimini RN 8 147750 199295
Gatteo FC 9 9068 208363
Verucchio RN 9 10078 218441
Borghi FC 9 2843 221284
Bellaria-Igea Marina RN 10 19519 240803
Poggio Torriana RN 10 5135 245938
Longiano FC 11 7126 253064
Roncofreddo FC 12 3386 256450
Gambettola FC 12 10660 267110
Montiano FC 13 1716 268826
Sogliano al Rubicone FC 15 3195 272021
Coriano RN 15 10502 282523
Riccione RN 16 34965 317488
Montescudo - Monte Colombo RN 17 6779 324267
Cesenatico FC 17 25796 350063
Sassofeltrio PU 19 1388 351451
San Clemente RN 19 5577 357028
Gemmano RN 19 1158 358186
Cesena FC 20 96758 454944

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km W of Rimini (147750 inhabitants)
20 Km E of Cesena (96758 inhabitants)
39 Km E of Forlì (117913 inhabitants)
39 Km W of Pesaro (94582 inhabitants)
45 Km SE of Ravenna (159116 inhabitants)
50 Km W of Fano (60888 inhabitants)
53 Km E of Faenza (58541 inhabitants)
68 Km E of Imola (69797 inhabitants)
81 Km NE of Arezzo (99543 inhabitants)
98 Km NW of Ancona (100861 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.3 2018-12-04
20:11:08		 44.0587 12.4673 37 2019-06-04
09:16:16		 Bollettino Sismico Italiano INGV 68360181
Reviewed
Rev100 		ML 1.2 2018-12-04
20:11:08		 44.1052 12.5403 11 2018-12-04
20:22:26		 Sala Sismica INGV-Roma 63642171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-04 20:11:08 ± 0.21
Latitude 44.0587 ± 0.0135
Longitude 12.4673 ± 0.0150
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68360181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1721
Semi-minor axis of confidence ellipse (meter) 608
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 1720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.10347
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 68360181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-08 14:58:18

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 63642171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-04 20:22:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2018-12-04T20:12:45.94 3.0 undecidable manual Sg 16.690001 0
IV.MTGR.HHZ. 2018-12-04T20:12:39.69 3.0 negative manual Pn 2.2 0
IV.MTTG.HHZ. 2018-12-04T20:12:38.50 3.0 undecidable manual Pn -1.72 0
IV.SARZ.HHZ. 2018-12-04T20:12:18.19 3.0 undecidable manual Sn -0.36 0
IV.AMUR.HHZ. 2018-12-04T20:12:07.74 3.0 undecidable manual Pn -0.09 0
IV.MSAG.HHZ. 2018-12-04T20:12:03.42 3.0 undecidable manual Pg 8.76 0
IV.AGLI.HHZ. 2018-12-04T20:12:01.05 3.0 positive manual Pn -5.2 0
IV.LRP.EHZ. 2018-12-04T20:11:57.00 3.0 undecidable manual Pg 10.52 0
IV.LIK.EHZ.01 2018-12-04T20:11:56.09 3.0 positive manual Pg 7.65 0
IV.VARE.HHZ. 2018-12-04T20:11:54.88 3.0 positive manual Pn 7.26 0
IV.ZONE.HHZ. 2018-12-04T20:11:38.26 3.0 undecidable manual Pn 3.11 0
CR.ZAG.BHZ. 2018-12-04T20:11:34.80 3.0 negative manual Pn -2.28 0
IV.ARVD.HHZ. 2018-12-04T20:11:32.46 0.3 undecidable manual S 148 72.8715 54 0.57 62
IV.CRE.HHZ. 2018-12-04T20:11:31.57 0.6 undecidable manual S 220 63.8916 116 1.65 25
IV.ATPI.EHZ. 2018-12-04T20:11:31.04 0.6 undecidable manual S 184 67.6767 54 0.28 45
IV.COR1.HNN. 2018-12-04T20:11:31.91 0.6 undecidable manual S 138 63.6918 116 2.03 18
IV.FRON.EHZ. 2018-12-04T20:11:30.34 0.6 undecidable manual S 161 63.492 116 0.52 43
IV.BADI.EHZ. 2018-12-04T20:11:30.36 0.6 undecidable manual S 196 63.492 116 0.54 44
IV.LMD.HHZ. 2018-12-04T20:11:29.77 0.3 undecidable manual S 272 60.5949 117 0.63 63
IV.CSP1.EHZ. 2018-12-04T20:11:29.19 0.3 undecidable manual P 151 122.4885 54 0.88 49
IV.PIEI.HHZ. 2018-12-04T20:11:28.55 0.6 undecidable manual S 175 58.2972 118 -0.04 48
IV.APEC.HNN. 2018-12-04T20:11:28.38 0.6 undecidable manual S 184 55.5999 120 0.42 45
IV.SFI.EHZ. 2018-12-04T20:11:27.07 0.6 undecidable manual S 251 52.4031 121 -0.15 47
IV.MPAG.EHZ. 2018-12-04T20:11:27.46 0.6 undecidable manual S 154 53.1024 121 0.08 49
IV.PARC.HHE. 2018-12-04T20:11:26.31 0.6 undecidable manual S 202 49.0176 123 -0.15 48
IV.EL6.EHZ. 2018-12-04T20:11:25.18 0.1 undecidable manual P 148 95.5377 54 0.23 86
IV.PE3.EHZ. 2018-12-04T20:11:24.10 0.6 undecidable manual S 177 40.3263 129 -0.47 45
IV.CPGN.EHZ. 2018-12-04T20:11:24.06 0.6 undecidable manual S 202 30.8469 137 1.33 33
IV.ARVD.HHZ. 2018-12-04T20:11:21.62 0.1 undecidable manual P 148 72.8715 54 -0.51 86
IV.COR1.HNN. 2018-12-04T20:11:21.26 0.1 undecidable manual P 138 63.6918 116 0.29 91
IV.ATPI.EHZ. 2018-12-04T20:11:21.03 0.3 undecidable manual P 184 67.6767 54 -0.44 66
IV.FRON.EHZ. 2018-12-04T20:11:20.46 0.1 undecidable manual P 161 63.492 116 -0.47 88
IV.BADI.EHZ. 2018-12-04T20:11:20.77 0.3 undecidable manual P 196 63.492 116 -0.16 70
IV.BLLA.EHE. 2018-12-04T20:11:20.74 0.6 undecidable manual S 1 9.3795 165 0.87 41
IV.CRE.HHZ. 2018-12-04T20:11:20.97 0.3 undecidable manual P 220 63.8916 116 -0.02 72
IV.BRIS.HHN. 2018-12-04T20:11:20.74 0.3 undecidable manual P 289 58.6968 118 0.46 66
IV.ASQU.HHE. 2018-12-04T20:11:20.08 0.3 undecidable manual P 242 61.494 117 -0.58 63
IV.LMD.HHZ. 2018-12-04T20:11:20.74 0.1 undecidable manual P 272 60.5949 117 0.2 93
IV.APEC.HNN. 2018-12-04T20:11:19.59 0.1 undecidable manual P 184 55.5999 120 -0.27 93
MN.TRI.HHZ. 2018-12-04T20:11:19.74 3.0 undecidable manual Pn -0.03 0
IV.MPAG.EHZ. 2018-12-04T20:11:19.18 0.3 undecidable manual P 154 53.1024 121 -0.34 69
IV.PIEI.HHZ. 2018-12-04T20:11:19.60 0.1 undecidable manual P 175 58.2972 118 -0.62 84
IV.PARC.HHE. 2018-12-04T20:11:18.40 0.1 undecidable manual P 202 49.0176 123 -0.6 86
IV.SFI.EHZ. 2018-12-04T20:11:18.84 0.1 undecidable manual P 251 52.4031 121 -0.59 86
IV.PE3.EHZ. 2018-12-04T20:11:17.84 0.3 undecidable manual P 177 40.3263 129 -0.06 75
IV.CPGN.EHZ. 2018-12-04T20:11:16.98 0.1 undecidable manual P 202 30.8469 137 0.14 100
IV.BLLA.EHE. 2018-12-04T20:11:14.49 0.3 undecidable manual P 1 9.3795 165 -0.7 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CPGN.HNE. ML:1.3 0.000056371773 0.5376 AML other m 2018-12-04T20:11:23.68
IV.CPGN.EHE. ML:1.2 0.000048191234999999996 0.32 AML other m 2018-12-04T20:11:24.97
IV.SFI.EHE. ML:1.1 0.000024274400000000003 0.7904 AML other m 2018-12-04T20:11:27.92
IV.SFI.EHN. ML:1.0 0.0000189960835 0.2176 AML other m 2018-12-04T20:11:29.16
IV.PIEI.HHE. ML:1.5 0.00005940000000000001 1.8 AML other m 2018-12-04T20:11:29.03
IV.PIEI.HHN. ML:1.5 0.0000532 0.46 AML other m 2018-12-04T20:11:29.73
IV.FRON.EHE. ML:1.1 0.000021649999999999998 0.44 AML other m 2018-12-04T20:11:30.49
IV.LMD.HHN. ML:1.4 0.000039149999999999996 0.28 AML other m 2018-12-04T20:11:30.72
IV.FRON.EHN. ML:1.4 0.0000401 0.88 AML other m 2018-12-04T20:11:31.00
IV.LMD.HHE. ML:1.3 0.00003275 1.08 AML other m 2018-12-04T20:11:31.73
IV.ARVD.HHE. ML:1.2 0.00001971206 0.7232 AML other m 2018-12-04T20:11:33.20
IV.ARVD.HHN. ML:0.9 0.000010851996500000001 0.2176 AML other m 2018-12-04T20:11:34.55
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download