Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-01-2016 and time 08:16:02 (Italy) in region 4 km SE Montegridolfo (RN)

A magnitude ML 2.0 earthquake occured in region: 4 km SE Montegridolfo (RN), on

  • 31-01-2016 07:16:02 (UTC)
  • 31-01-2016 08:16:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8300, 12.7270 at 36 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
Montegridolfo RN 5 1012 1012
Mondaino RN 5 1394 2406
Petriano PU 5 2829 5235
Montelabbate PU 6 6938 12173
Vallefoglia PU 6 15018 27191
Saludecio RN 7 3120 30311
Monteciccardo PU 7 1690 32001
Montecalvo in Foglia PU 8 2718 34719
Tavullia PU 8 8003 42722
Mombaroccio PU 11 2152 44874
Tavoleto PU 11 867 45741
Isola del Piano PU 11 594 46335
Morciano di Romagna RN 11 7045 53380
Montefiore Conca RN 12 2269 55649
San Giovanni in Marignano RN 12 9417 65066
Auditore PU 12 1566 66632
Gradara PU 13 4835 71467
Montefelcino PU 14 2671 74138
Urbino PU 14 15019 89157
San Clemente RN 14 5577 94734
Gemmano RN 14 1158 95892
Cartoceto PU 15 7887 103779
Serrungarina PU 15 2634 106413
Cattolica RN 15 17125 123538
Gabicce Mare PU 16 5781 129319
Saltara PU 16 6925 136244
Misano Adriatico RN 16 13014 149258
Fossombrone PU 17 9575 158833
Pesaro PU 18 94582 253415
Montescudo - Monte Colombo RN 18 6779 260194
Coriano RN 18 10502 270696
Fermignano PU 18 8596 279292
Sassofeltrio PU 19 1388 280680
Mercatino Conca PU 19 1086 281766
Sassocorvaro PU 19 3504 285270
Sant'Ippolito PU 20 1563 286833
Riccione RN 20 34965 321798

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SW of Pesaro (94582 inhabitants)
24 Km W of Fano (60888 inhabitants)
29 Km SE of Rimini (147750 inhabitants)
52 Km SE of Cesena (96758 inhabitants)
68 Km W of Ancona (100861 inhabitants)
70 Km SE of Forlì (117913 inhabitants)
78 Km SE of Ravenna (159116 inhabitants)
79 Km NE of Arezzo (99543 inhabitants)
84 Km SE of Faenza (58541 inhabitants)
85 Km NE of Perugia (166134 inhabitants)
97 Km N of Foligno (57155 inhabitants)
100 Km SE of Imola (69797 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 2.0 2016-01-31
07:16:02		 43.8297 12.7272 36 2016-05-17
13:16:23		 Bollettino Sismico Italiano INGV 23573641
Reviewed
Rev100 		ML 2.1 2016-01-31
07:16:02		 43.8273 12.7088 36 2016-01-31
07:27:35		 Sala Sismica INGV-Roma 23314401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-01-31 07:16:02 ± 0.07
Latitude 43.8297 ± 0.0036
Longitude 12.7272 ± 0.0037
Depth (km) 36 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 23573641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 413
Semi-minor axis of confidence ellipse (meter) 91
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 76
Number of defining phases 65
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.03422
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 9
Type of magnitude ML
Reference to an origin 23573641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-02-21 16:24:42

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 23314401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-01-31 07:27:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SOLUN.HHZ. 2016-01-31T07:17:38.31 3.0 undecidable manual Pg 11.75 0
IV.MCRV.HHZ. 2016-01-31T07:17:31.99 3.0 undecidable manual Sn -5.13 0
IV.CAPR.HNZ. 2016-01-31T07:17:26.99 3.0 undecidable manual Sg 8.6 0
IV.CET2.HHZ. 2016-01-31T07:17:25.62 3.0 undecidable manual Pg 10.38 0
IV.EUCT.HNZ. 2016-01-31T07:17:23.99 3.0 undecidable manual Sn -0.04 0
IV.MCEL.HHZ. 2016-01-31T07:17:20.48 3.0 undecidable manual Pg 15.46 0
IV.TRIV.HHZ. 2016-01-31T07:17:11.99 3.0 undecidable manual Sn 1.02 0
IV.SAMA.HHZ. 2016-01-31T07:17:05.99 3.0 undecidable manual Sg 5.07 0
IV.CAVE.HHZ. 2016-01-31T07:16:56.99 3.0 undecidable manual Sg 4.43 0
IV.TRIF.HHZ. 2016-01-31T07:16:54.99 3.0 undecidable manual Sg 6.44 0
IV.MA9.HHZ. 2016-01-31T07:16:40.16 3.0 positive manual Pg 4.46 0
IV.MOMA.HNZ. 2016-01-31T07:16:35.52 0.6 undecidable manual S 186 114.7962 54 0.35 38
IV.MGAB.HHZ. 2016-01-31T07:16:34.82 0.3 undecidable manual S 206 113.1978 54 0.01 62
IV.FDMO.HHZ. 2016-01-31T07:16:30.33 0.3 undecidable manual S 162 92.6406 54 -0.06 65
IV.ASSB.HHZ. 2016-01-31T07:16:29.57 0.6 undecidable manual S 184 87.4458 54 0.29 41
IV.LMD.HHE. 2016-01-31T07:16:29.40 0.3 undecidable manual S 289 85.9473 54 0.45 58
IV.AOI.HHE. 2016-01-31T07:16:27.33 0.3 undecidable manual S 114 76.7676 111 0.38 62
IV.ATTE.HHN. 2016-01-31T07:16:27.14 0.3 undecidable manual S 203 76.2681 111 0.31 63
IV.ASQU.HHE. 2016-01-31T07:16:26.25 0.3 undecidable manual S 268 75.1692 111 -0.31 64
IV.PCRO.HNE. 2016-01-31T07:16:25.58 0.3 undecidable manual S 111 69.0753 113 0.52 61
IV.SFI.HNN. 2016-01-31T07:16:25.72 0.3 undecidable manual S 277 70.8735 112 0.22 65
IV.SNTG.HHE. 2016-01-31T07:16:24.70 0.1 undecidable manual S 165 65.9895 114 0.39 85
IV.CRE.HHZ. 2016-01-31T07:16:24.03 0.6 undecidable manual S 250 66.378 114 -0.37 42
IV.MURB.HHE. 2016-01-31T07:16:24.09 0.3 undecidable manual S 195 64.9905 114 0.05 69
IV.CING.HHZ. 2016-01-31T07:16:23.89 0.3 undecidable manual S 143 62.8926 115 0.35 65
IV.FOSV.HNE. 2016-01-31T07:16:22.90 0.3 undecidable manual S 177 59.3961 117 0.19 67
IV.SSP9.EHZ. 2016-01-31T07:16:22.10 0.3 undecidable manual S 239 55.5999 118 0.3 66
IV.MGAB.HHZ. 2016-01-31T07:16:21.50 0.3 undecidable manual P 206 113.1978 54 0.21 60
IV.BAT1.EHZ. 2016-01-31T07:16:21.72 0.6 undecidable manual S 205 54.9006 119 0.06 46
IV.ATFO.HHN. 2016-01-31T07:16:21.07 0.6 undecidable manual S 194 52.9026 120 -0.1 46
IV.BADI.EHZ. 2016-01-31T07:16:21.53 0.3 undecidable manual S 228 52.503 120 0.43 65
IV.MOMA.HNZ. 2016-01-31T07:16:21.55 0.3 undecidable manual P 186 114.7962 54 0.06 61
IV.PARC.HHZ. 2016-01-31T07:16:19.33 0.3 undecidable manual S 243 44.0226 125 0.16 69
IV.ATSC.EHZ. 2016-01-31T07:16:19.61 0.6 undecidable manual S 184 45.1215 124 0.19 46
IV.SSFR.HHZ. 2016-01-31T07:16:19.25 0.6 undecidable manual S 174 43.8228 125 0.11 47
IV.FDMO.HHZ. 2016-01-31T07:16:18.49 0.3 undecidable manual P 162 92.6406 54 -0.24 63
IV.APEC.HNZ. 2016-01-31T07:16:18.41 0.6 undecidable manual S 219 38.9277 129 0.33 45
IV.ARVD.HHZ. 2016-01-31T07:16:18.39 0.3 undecidable manual S 155 40.626 127 -0.05 71
IV.FRON.EHZ. 2016-01-31T07:16:17.27 0.6 undecidable manual S 180 34.6431 132 0.06 48
IV.ATTE.HHN. 2016-01-31T07:16:17.01 0.3 undecidable manual P 203 76.2681 111 0.33 63
IV.PIEI.HHZ. 2016-01-31T07:16:17.33 0.3 undecidable manual S 205 36.0417 131 -0.17 70
IV.ASSB.HHZ. 2016-01-31T07:16:17.83 0.3 undecidable manual P 184 87.4458 54 -0.26 63
IV.LMD.HHE. 2016-01-31T07:16:17.51 0.3 undecidable manual P 289 85.9473 54 -0.39 62
IV.ASQU.HHE. 2016-01-31T07:16:16.76 0.3 undecidable manual P 268 75.1692 111 0.24 64
IV.AOI.HHE. 2016-01-31T07:16:16.48 0.3 undecidable manual P 114 76.7676 111 -0.27 64
IV.COR1.EHZ. 2016-01-31T07:16:16.76 0.3 undecidable manual S 135 31.0467 136 0.24 70
IV.SFI.HNN. 2016-01-31T07:16:16.18 0.3 undecidable manual P 277 70.8735 112 0.27 64
IV.NARO.HHZ. 2016-01-31T07:16:15.74 0.1 undecidable manual S 206 26.9508 140 -0.05 97
IV.PCRO.HNE. 2016-01-31T07:16:15.82 0.3 undecidable manual P 111 69.0753 113 0.16 66
IV.CRE.HHZ. 2016-01-31T07:16:15.55 0.3 undecidable manual P 250 66.378 114 0.27 65
IV.MPAG.EHZ. 2016-01-31T07:16:15.15 0.1 undecidable manual S 173 22.3554 145 0.1 98
IV.RSM2.HHE. 2016-01-31T07:16:15.86 0.3 undecidable manual S 298 25.5522 142 0.31 69
IV.MURB.HHE. 2016-01-31T07:16:15.11 0.3 undecidable manual P 195 64.9905 114 0.04 68
IV.FSSB.HHZ. 2016-01-31T07:16:14.27 0.1 undecidable manual S 165 15.6732 154 0.12 99
IV.CING.HHZ. 2016-01-31T07:16:14.63 0.1 undecidable manual P 143 62.8926 115 -0.15 90
IV.SNTG.HHE. 2016-01-31T07:16:14.84 0.6 undecidable manual P 165 65.9895 114 -0.38 42
IV.PESA.HHZ. 2016-01-31T07:16:14.46 0.3 undecidable manual S 36 15.2736 155 0.36 70
IV.SSP9.EHZ. 2016-01-31T07:16:13.83 0.3 undecidable manual P 239 55.5999 118 0.05 69
IV.FOSV.HNE. 2016-01-31T07:16:13.83 0.3 undecidable manual P 177 59.3961 117 -0.47 63
IV.BAT1.EHZ. 2016-01-31T07:16:13.41 0.3 undecidable manual P 205 54.9006 119 -0.28 66
IV.ATFO.HHN. 2016-01-31T07:16:13.73 0.3 undecidable manual P 194 52.9026 120 0.32 66
IV.BADI.EHZ. 2016-01-31T07:16:13.03 0.1 undecidable manual P 228 52.503 120 -0.34 88
IV.ARVD.HHZ. 2016-01-31T07:16:11.49 0.1 undecidable manual P 155 40.626 127 -0.34 89
IV.APEC.HNZ. 2016-01-31T07:16:11.34 0.3 undecidable manual P 219 38.9277 129 -0.28 68
IV.PARC.HHZ. 2016-01-31T07:16:11.95 0.1 undecidable manual P 243 44.0226 125 -0.31 90
IV.ATSC.EHZ. 2016-01-31T07:16:11.98 0.1 undecidable manual P 184 45.1215 124 -0.42 87
IV.SSFR.HHZ. 2016-01-31T07:16:11.82 0.3 undecidable manual P 174 43.8228 125 -0.42 66
IV.COR1.EHZ. 2016-01-31T07:16:10.98 0.3 undecidable manual P 135 31.0467 136 0.26 69
IV.RSM2.HHE. 2016-01-31T07:16:10.46 0.3 undecidable manual P 298 25.5522 142 0.3 69
IV.FRON.EHZ. 2016-01-31T07:16:10.72 0.1 undecidable manual P 180 34.6431 132 -0.4 89
IV.PIEI.HHZ. 2016-01-31T07:16:10.82 0.1 undecidable manual P 205 36.0417 131 -0.47 88
IV.MPAG.EHZ. 2016-01-31T07:16:09.62 0.1 undecidable manual P 173 22.3554 145 -0.26 94
IV.NARO.HHZ. 2016-01-31T07:16:09.84 0.1 undecidable manual P 206 26.9508 140 -0.47 89
IV.FSSB.HHZ. 2016-01-31T07:16:09.10 0.1 undecidable manual P 165 15.6732 154 -0.25 95
IV.PE3.EHZ. 2016-01-31T07:16:09.96 0.1 undecidable manual P 231 23.6541 144 -0.03 98
IV.PESA.HHZ. 2016-01-31T07:16:09.28 0.1 undecidable manual P 36 15.2736 155 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:2.1 0.00012595 1.32 AML other m 2016-01-31T07:16:32.70
IV.ASSB.HHE. ML:2.0 0.00011035 0.5 AML other m 2016-01-31T07:16:32.73
IV.BADI.EHN. ML:2.0 0.000193 0.42 AML other m 2016-01-31T07:16:21.85
IV.BADI.EHE. ML:2.2 0.00032450000000000003 0.2 AML other m 2016-01-31T07:16:22.05
IV.CRE.HHE. ML:1.8 0.00008560000000000001 1.42 AML other m 2016-01-31T07:16:17.47
IV.CRE.HHN. ML:2.1 0.00017649999999999998 0.34 AML other m 2016-01-31T07:16:27.79
IV.FDMO.HHN. ML:1.9 0.0000741 0.66 AML other m 2016-01-31T07:16:33.62
IV.FDMO.HHE. ML:2.0 0.00010314999999999999 1.58 AML other m 2016-01-31T07:16:34.12
IV.FRON.EHN. ML:2.1 0.000365 0.22 AML other m 2016-01-31T07:16:17.38
IV.FRON.EHE. ML:2.0 0.0002615 0.54 AML other m 2016-01-31T07:16:17.52
IV.MGAB.HHE. ML:2.1 0.00010235 1.06 AML other m 2016-01-31T07:16:39.53
IV.MGAB.HHN. ML:2.1 0.0000935 1.58 AML other m 2016-01-31T07:16:40.64
IV.MPAG.EHN. ML:2.2 0.000596 0.16 AML other m 2016-01-31T07:16:15.33
IV.MPAG.EHE. ML:2.2 0.0004875 0.18 AML other m 2016-01-31T07:16:15.32
IV.NARO.HHE. ML:2.0 0.00028649999999999997 0.86 AML other m 2016-01-31T07:16:16.15
IV.NARO.HHN. ML:2.0 0.00029949999999999996 0.3 AML other m 2016-01-31T07:16:16.31
IV.PARC.HHE. ML:2.0 0.000214 0.3 AML other m 2016-01-31T07:16:20.90
IV.PARC.HHN. ML:2.1 0.000262 0.46 AML other m 2016-01-31T07:16:19.95
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
Waveforms Seismic signals in miniseed + resp format Download