Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 20-10-2023 and time 10:36:01 (Italy) in region 2 km S Fossombrone (PU)

A magnitude ML 2.1 earthquake occured in region: 2 km S Fossombrone (PU), on

  • 20-10-2023 08:36:01 (UTC)
  • 20-10-2023 10:36:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6690, 12.8020 at 38 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Fossombrone PU 2 9575 9575
Sant'Ippolito PU 6 1563 11138
Isola del Piano PU 8 594 11732
Montefelcino PU 8 2671 14403
Fratte Rosa PU 9 966 15369
Barchi PU 10 967 16336
Serrungarina PU 11 2634 18970
Acqualagna PU 12 4393 23363
Pergola PU 12 6333 29696
Saltara PU 12 6925 36621
Fermignano PU 13 8596 45217
Cartoceto PU 13 7887 53104
Orciano di Pesaro PU 13 2028 55132
Mondavio PU 14 3810 58942
Petriano PU 14 2829 61771
San Lorenzo in Campo PU 14 3414 65185
Montemaggiore al Metauro PU 14 2893 68078
Urbino PU 15 15019 83097
Mombaroccio PU 15 2152 85249
San Giorgio di Pesaro PU 15 1388 86637
Piagge PU 16 1022 87659
Castelleone di Suasa AN 16 1676 89335
Monteciccardo PU 17 1690 91025
Vallefoglia PU 18 15018 106043
Frontone PU 18 1300 107343
Cagli PU 18 8731 116074
Monte Porzio PU 20 2836 118910
Serra Sant'Abbondio PU 20 1027 119937

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SW of Fano (60888 inhabitants)
28 Km SW of Pesaro (94582 inhabitants)
48 Km SE of Rimini (147750 inhabitants)
58 Km W of Ancona (100861 inhabitants)
69 Km SE of Cesena (96758 inhabitants)
71 Km NE of Perugia (166134 inhabitants)
77 Km E of Arezzo (99543 inhabitants)
80 Km N of Foligno (57155 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
96 Km SE of Ravenna (159116 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
Reviewed
Rev100 		ML 2.1 2023-10-20
08:36:01		 43.6692 12.8017 38 2023-10-20
08:42:12		 Sala Sismica INGV-Roma 122221301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-20 08:36:01 ± 0.2
Latitude 43.6692 ± 0.0099
Longitude 12.8017 ± 0.0162
Depth (km) 38 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122221301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1105
Semi-minor axis of confidence ellipse (meter) 707
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42628
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 122221301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-20 08:42:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGR.HHZ. 2023-10-20T08:37:52.94 3.0 undecidable manual Sn 4.01 0
IV.AGLI.HHZ. 2023-10-20T08:37:40.22 3.0 undecidable manual Sn -0.01 0
IV.TDS.HHZ. 2023-10-20T08:37:31.11 3.0 undecidable manual Pg 18.91 0
IV.MTMR.HNZ. 2023-10-20T08:37:29.97 3.0 undecidable manual Sn 2.68 0
IV.MGR.HNZ. 2023-10-20T08:37:19.22 3.0 undecidable manual Pg 16.9 0
IV.PTRJ.HHZ. 2023-10-20T08:37:14.05 3.0 undecidable manual Sn 0.52 0
NI.VINO.HHZ. 2023-10-20T08:37:09.79 3.0 undecidable manual Sn -4.61 0
ST.DOSS.HHZ. 2023-10-20T08:37:08.46 3.0 undecidable manual Sn -3.32 0
IV.BSSO.HHZ. 2023-10-20T08:37:08.36 3.0 undecidable manual Sn -1.91 0
IV.BULG.HHZ. 2023-10-20T08:37:00.23 3.0 undecidable manual Pn -1.93 0
IV.BRES.EHZ. 2023-10-20T08:36:56.04 3.0 undecidable manual Pg 5.97 0
ST.CARE.HNZ. 2023-10-20T08:36:52.05 3.0 undecidable manual Pn 1.79 0
IV.RIBO.EHZ.01 2023-10-20T08:36:52.20 3.0 undecidable manual Sg 6.23 0
IV.TREG.HNZ. 2023-10-20T08:36:44.94 3.0 undecidable manual Pg 7.59 0
IV.LRP.EHZ. 2023-10-20T08:36:40.03 3.0 negative manual Pg 4.89 0
OX.DRE.HHZ. 2023-10-20T08:36:40.03 3.0 positive manual Pn -2.42 0
IV.RCAV.EHZ. 2023-10-20T08:36:34.15 3.0 undecidable manual Pg 2.79 0
IV.CSP1.EHZ. 2023-10-20T08:36:25.76 3.0 undecidable manual S 0.75 0
IV.RM33.EHZ. 2023-10-20T08:36:23.98 3.0 negative manual Pg 1.23 0
IV.SMA1.EHZ. 2023-10-20T08:36:22.42 3.0 negative manual Pn 0.91 0
IV.LNSS.HHZ. 2023-10-20T08:36:21.84 3.0 undecidable manual Pn 0.7 0
IV.MGAB.HHZ. 2023-10-20T08:36:19.47 3.0 negative manual P 0.44 0
IV.SNTG.HHZ. 2023-10-20T08:36:19.17 0.6 undecidable manual S 166 47.3193 98 0.16 47
IV.CING.HHZ. 2023-10-20T08:36:19.05 0.3 undecidable manual S 136 45.4212 101 0.44 66
IV.ATPI.EHZ. 2023-10-20T08:36:18.17 0.3 undecidable manual S 233 40.2264 110 0.63 63
IV.MMO1.EHZ. 2023-10-20T08:36:18.14 3.0 undecidable manual P 0.06 0
IV.CAFI.HHZ. 2023-10-20T08:36:16.47 3.0 negative manual P 0.13 0
IV.GUMA.HHZ. 2023-10-20T08:36:16.38 3.0 positive manual P 0.21 0
IV.MF5.EHZ. 2023-10-20T08:36:16.64 3.0 negative manual P -1.08 0
IV.CRE.HHZ. 2023-10-20T08:36:16.20 3.0 negative manual P 0.72 0
IV.CESI.HHZ. 2023-10-20T08:36:15.06 3.0 negative manual P -0.44 0
IV.PIEI.HHZ. 2023-10-20T08:36:15.27 0.3 undecidable manual S 235 26.0517 132 0.33 70
IV.PESA.HHZ. 2023-10-20T08:36:15.80 0.6 undecidable manual S 6 30.3474 126 0.15 47
IV.ATMI.HHZ. 2023-10-20T08:36:14.51 3.0 positive manual P 0.94 0
IV.ARVD.HHZ. 2023-10-20T08:36:14.33 0.6 undecidable manual S 149 22.0668 139 -0.01 50
IV.ASSB.HHZ. 2023-10-20T08:36:14.64 3.0 positive manual P -0.47 0
IV.CSP1.EHZ. 2023-10-20T08:36:13.45 3.0 negative manual P -1.72 0
IV.FRON.EHZ. 2023-10-20T08:36:13.94 0.6 undecidable manual S 200 17.871 146 0.15 49
IV.MML1.EHZ. 2023-10-20T08:36:13.64 3.0 positive manual P -0.43 0
IV.CRTC.HHZ. 2023-10-20T08:36:13.32 0.6 undecidable manual S 31 12.7761 155 0.06 50
IV.NARO.HHZ. 2023-10-20T08:36:13.61 0.6 undecidable manual S 250 18.87 144 -0.31 47
IV.MPAG.EHZ. 2023-10-20T08:36:12.69 0.6 undecidable manual S 217 5.5944 169 -0.09 51
IV.BADI.EHZ. 2023-10-20T08:36:12.12 3.0 positive manual P -0.33 0
IV.PARC.HHZ. 2023-10-20T08:36:11.50 3.0 positive manual P -0.69 0
IV.SNTG.HHZ. 2023-10-20T08:36:11.51 0.1 negative manual P 166 47.3193 98 -0.13 93
IV.CING.HHZ. 2023-10-20T08:36:11.44 0.6 positive manual P 136 45.4212 101 0.03 48
IV.ATCC.EHZ. 2023-10-20T08:36:11.60 3.0 undecidable manual P -1.38 0
IV.PE3.EHZ. 2023-10-20T08:36:10.08 0.1 undecidable manual P 277 24.6531 135 0.92 75
IV.ATPI.EHZ. 2023-10-20T08:36:10.78 0.6 undecidable manual P 233 40.2264 110 -0.01 48
IV.SENI.EHZ. 2023-10-20T08:36:10.44 0.6 positive manual P 83 34.8429 119 0.26 46
IV.PESA.HHZ. 2023-10-20T08:36:09.75 0.1 undecidable manual P 6 30.3474 126 0.05 97
IV.CRTC.HHZ. 2023-10-20T08:36:08.20 0.1 positive manual P 31 12.7761 155 -0.12 100
IV.NARO.HHZ. 2023-10-20T08:36:08.31 0.1 positive manual P 250 18.87 144 -0.39 93
IV.ARVD.HHZ. 2023-10-20T08:36:08.65 0.1 positive manual P 149 22.0668 139 -0.29 94
IV.FRON.EHZ. 2023-10-20T08:36:08.27 0.1 undecidable manual P 200 17.871 146 -0.36 94
IV.PIEI.HHZ. 2023-10-20T08:36:08.96 0.1 positive manual P 235 26.0517 132 -0.33 93
IV.MPAG.EHZ. 2023-10-20T08:36:07.68 0.1 positive manual P 217 5.5944 169 -0.36 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAG.EHE. ML:1.8 0.00026700000000000004 0.76 AML other m 2023-10-20T08:36:13.43
IV.CRTC.HHE. ML:2.5 0.001175 1.78 AML other m 2023-10-20T08:36:14.06
IV.NARO.HHE. ML:1.6 0.00014450000000000002 1.56 AML other m 2023-10-20T08:36:14.95
IV.FRON.EHN. ML:2.2 0.0004845 0.34 AML other m 2023-10-20T08:36:14.18
IV.MPAG.EHN. ML:1.8 0.00021250000000000002 0.28 AML other m 2023-10-20T08:36:14.21
IV.FRON.EHE. ML:2.1 0.0004165 0.14 AML other m 2023-10-20T08:36:14.24
IV.NARO.HHN. ML:1.8 0.0002155 0.88 AML other m 2023-10-20T08:36:14.09
IV.ARVD.HHN. ML:2.2 0.0004385 0.58 AML other m 2023-10-20T08:36:14.53
IV.CRTC.HHN. ML:2.6 0.001515 0.48 AML other m 2023-10-20T08:36:15.27
IV.ARVD.HHE. ML:2.0 0.000298 0.88 AML other m 2023-10-20T08:36:15.76
IV.PIEI.HHN. ML:1.8 0.0002055 0.3 AML other m 2023-10-20T08:36:15.43
IV.PIEI.HHE. ML:1.9 0.00026250000000000004 0.5 AML other m 2023-10-20T08:36:15.70
IV.CESI.HHE. ML:2.0 0.000143 1.86 AML other m 2023-10-20T08:36:16.04
IV.PESA.HHN. ML:2.5 0.0008935 0.1 AML other m 2023-10-20T08:36:16.32
IV.PE3.EHE. ML:2.2 0.000484 0.44 AML other m 2023-10-20T08:36:16.70
IV.PE3.EHN. ML:2.2 0.0005340000000000001 1.38 AML other m 2023-10-20T08:36:17.79
IV.PESA.HHE. ML:2.4 0.000694 0.94 AML other m 2023-10-20T08:36:17.77
IV.SNTG.HHE. ML:1.9 0.000175 1.3 AML other m 2023-10-20T08:36:19.79
IV.PARC.HHE. ML:1.9 0.0001555 0.14 AML other m 2023-10-20T08:36:19.86
IV.PARC.HHN. ML:1.9 0.000168 0.46 AML other m 2023-10-20T08:36:19.93
IV.CING.HHN. ML:2.0 0.00022099999999999998 0.64 AML other m 2023-10-20T08:36:20.04
IV.SNTG.HHN. ML:2.0 0.0001965 0.24 AML other m 2023-10-20T08:36:20.74
IV.CING.HHE. ML:2.1 0.000262 0.34 AML other m 2023-10-20T08:36:20.56
IV.BADI.EHE. ML:1.8 0.00011725 0.82 AML other m 2023-10-20T08:36:21.67
IV.ATCC.EHN. ML:2.1 0.0002335 0.36 AML other m 2023-10-20T08:36:22.33
IV.ATCC.EHE. ML:2.1 0.000241 0.54 AML other m 2023-10-20T08:36:23.65
IV.MML1.EHE. ML:2.1 0.00021100000000000003 0.58 AML other m 2023-10-20T08:36:25.28
IV.BADI.EHN. ML:1.6 0.00008865 0.62 AML other m 2023-10-20T08:36:25.52
IV.MML1.EHN. ML:2.0 0.00014600000000000003 0.52 AML other m 2023-10-20T08:36:26.50
IV.CSP1.EHE. ML:2.6 0.0005905 0.34 AML other m 2023-10-20T08:36:26.79
IV.CSP1.EHN. ML:2.6 0.0005325 1.32 AML other m 2023-10-20T08:36:27.30
IV.CESI.HHN. ML:2.2 0.0002035 0.46 AML other m 2023-10-20T08:36:27.77
IV.ASSB.HHE. ML:2.0 0.00012575 0.7 AML other m 2023-10-20T08:36:28.36
IV.GUMA.HHN. ML:2.6 0.0004265 0.48 AML other m 2023-10-20T08:36:28.67
IV.ASSB.HHN. ML:2.2 0.0001995 0.74 AML other m 2023-10-20T08:36:28.53
IV.GUMA.HHE. ML:2.6 0.0005385 1.52 AML other m 2023-10-20T08:36:33.76
IV.MMO1.EHN. ML:2.3 0.000183 0.6 AML other m 2023-10-20T08:36:33.36
IV.MMO1.EHE. ML:2.3 0.0002065 0.5 AML other m 2023-10-20T08:36:35.38
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