Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 20-12-2019 and time 06:53:19 (UTC) in region 2 km SW Auditore (PU)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Auditore (PU), on

  • 20-12-2019 06:53:19 (UTC)
  • 20-12-2019 07:53:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8090, 12.5670 at 43 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Auditore PU 2 1566 1566
Tavoleto PU 5 867 2433
Montecalvo in Foglia PU 5 2718 5151
Sassocorvaro PU 7 3504 8655
Mercatino Conca PU 9 1086 9741
Monte Grimano Terme PU 10 1136 10877
Montefiore Conca RN 10 2269 13146
Macerata Feltria PU 10 1990 15136
Mondaino RN 10 1394 16530
Sassofeltrio PU 10 1388 17918
Gemmano RN 11 1158 19076
Saludecio RN 11 3120 22196
Urbino PU 11 15019 37215
Montegridolfo RN 11 1012 38227
Montescudo - Monte Colombo RN 13 6779 45006
Monte Cerignone PU 13 669 45675
Lunano PU 13 1527 47202
Morciano di Romagna RN 13 7045 54247
Peglio PU 14 696 54943
Petriano PU 14 2829 57772
San Clemente RN 15 5577 63349
Pietrarubbia PU 15 660 64009
Piandimeleto PU 15 2167 66176
Frontino PU 16 293 66469
Urbania PU 16 7099 73568
Fermignano PU 16 8596 82164
Montecopiolo PU 17 1128 83292
Coriano RN 18 10502 93794
Tavullia PU 18 8003 101797
Belforte all'Isauro PU 18 769 102566
Montelabbate PU 19 6938 109504
Carpegna PU 19 1674 111178
San Giovanni in Marignano RN 19 9417 120595
Vallefoglia PU 19 15018 135613
Isola del Piano PU 19 594 136207
Monteciccardo PU 20 1690 137897

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km S of Rimini (147750 inhabitants)
30 Km W of Pesaro (94582 inhabitants)
37 Km W of Fano (60888 inhabitants)
45 Km SE of Cesena (96758 inhabitants)
62 Km SE of Forlì (117913 inhabitants)
67 Km NE of Arezzo (99543 inhabitants)
74 Km SE of Ravenna (159116 inhabitants)
76 Km SE of Faenza (58541 inhabitants)
79 Km N of Perugia (166134 inhabitants)
80 Km W of Ancona (100861 inhabitants)
91 Km SE of Imola (69797 inhabitants)
95 Km N of Foligno (57155 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 2019-12-20
06:53:19		 43.8092 12.5672 43 2020-02-28
16:42:25		 Bollettino Sismico Italiano INGV 76480451
Reviewed
Rev100 		ML 1.2 2019-12-20
06:53:18		 43.8037 12.5452 45 2019-12-20
07:32:26		 Sala Sismica INGV-Roma 74810191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-20 06:53:19 ± 0.26
Latitude 43.8092 ± 0.0162
Longitude 12.5672 ± 0.0150
Depth (km) 43 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76480451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1693
Semi-minor axis of confidence ellipse (meter) 742
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 1690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.56118
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 76480451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-13 09:27:28

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 74810191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-20 07:32:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASQU.HHE. 2019-12-20T06:53:40.57 0.6 undecidable manual S 269 62.2932 104 0.58 43
IV.CRE.HHE. 2019-12-20T06:53:39.01 0.6 undecidable manual S 247 53.7018 110 0.8 40
IV.ARVD.HHZ. 2019-12-20T06:53:37.71 0.3 undecidable manual S 139 45.7209 117 1.07 51
IV.ATSC.EHE. 2019-12-20T06:53:36.69 0.3 undecidable manual S 167 43.8228 119 0.42 67
IV.PESA.HHZ. 2019-12-20T06:53:34.68 0.6 undecidable manual S 56 26.2515 139 1.36 31
IV.MPAG.EHZ. 2019-12-20T06:53:33.38 0.3 undecidable manual S 142 25.2525 140 0.21 73
IV.PIEI.HHZ. 2019-12-20T06:53:33.70 0.3 undecidable manual S 185 30.4473 134 -0.24 73
IV.CPGN.HNE. 2019-12-20T06:53:33.53 0.6 undecidable manual S 268 19.7691 148 1.05 38
IV.PARC.HHZ. 2019-12-20T06:53:33.89 0.3 undecidable manual S 236 31.746 132 -0.26 72
IV.NARO.HHZ. 2019-12-20T06:53:32.37 0.3 undecidable manual S 177 22.0668 145 -0.38 72
IV.ASQU.HHE. 2019-12-20T06:53:31.22 0.1 undecidable manual P 269 62.2932 104 0.03 95
IV.PE3.EHZ. 2019-12-20T06:53:31.92 0.6 undecidable manual S 204 13.7751 157 0.03 52
IV.CRE.HHE. 2019-12-20T06:53:30.57 0.1 undecidable manual P 247 53.7018 110 0.41 91
IV.CDCA.HNE. 2019-12-20T06:53:30.25 0.3 undecidable manual P 215 47.2194 115 0.83 59
IV.SFI.EHZ. 2019-12-20T06:53:30.61 0.3 undecidable manual P 281 58.5969 107 -0.13 70
IV.TB02.DHZ. 2019-12-20T06:53:30.14 0.3 undecidable manual P 195 50.3163 113 0.37 68
IV.TB03.DHZ.01 2019-12-20T06:53:30.91 0.3 undecidable manual P 196 46.9197 116 1.52 41
IV.SSP9.EHE. 2019-12-20T06:53:29.01 0.6 undecidable manual P 233 43.623 119 -0.01 49
IV.ATMC.EHZ. 2019-12-20T06:53:29.65 0.3 undecidable manual P 217 50.2164 113 -0.11 72
IV.SSFR.HNE. 2019-12-20T06:53:28.84 0.3 undecidable manual P 157 44.8218 118 -0.31 70
IV.ARVD.HHZ. 2019-12-20T06:53:28.87 0.3 undecidable manual P 139 45.7209 117 -0.39 69
IV.ATSC.EHE. 2019-12-20T06:53:28.77 0.1 undecidable manual P 167 43.8228 119 -0.27 95
IV.PESA.HHZ. 2019-12-20T06:53:27.51 0.3 undecidable manual P 56 26.2515 139 0.17 74
IV.PARC.HHZ. 2019-12-20T06:53:27.06 0.3 undecidable manual P 236 31.746 132 -0.76 61
IV.ATPC.HNZ. 2019-12-20T06:53:27.79 0.1 undecidable manual P 194 37.5291 125 -0.59 88
IV.MPAG.EHZ. 2019-12-20T06:53:27.08 0.1 undecidable manual P 142 25.2525 140 -0.17 100
IV.PIEI.HHZ. 2019-12-20T06:53:27.13 0.3 undecidable manual P 185 30.4473 134 -0.57 67
IV.CPGN.HNE. 2019-12-20T06:53:26.67 0.1 undecidable manual P 268 19.7691 148 -0.19 99
IV.RSM2.HHE. 2019-12-20T06:53:26.31 0.6 undecidable manual P 326 17.2716 152 -0.39 48
IV.NARO.HHZ. 2019-12-20T06:53:26.43 0.1 undecidable manual P 177 22.0668 145 -0.58 91
IV.PE3.EHZ. 2019-12-20T06:53:26.07 0.3 undecidable manual P 204 13.7751 157 -0.44 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PE3.EHN. ML:1.9 0.00026652885000000005 1.0784 AML other m 2019-12-20T06:53:31.24
IV.PE3.EHE. ML:1.9 0.00022240762 0.3008 AML other m 2019-12-20T06:53:32.31
IV.NARO.HHE. ML:1.4 0.00007375 0.44 AML other m 2019-12-20T06:53:32.58
IV.NARO.HHN. ML:1.4 0.00007035 0.86 AML other m 2019-12-20T06:53:32.54
IV.PARC.HHN. ML:1.0 0.0000268250985 0.0768 AML other m 2019-12-20T06:53:33.04
IV.PIEI.HHE. ML:1.3 0.000052775255 1.8784 AML other m 2019-12-20T06:53:33.97
IV.PIEI.HHN. ML:1.0 0.000025745786 0.2592 AML other m 2019-12-20T06:53:34.22
IV.PARC.HHE. ML:0.8 0.00001640168 1.2992 AML other m 2019-12-20T06:53:34.35
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