Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 23-10-2021 and time 11:51:14 (UTC) in region 8 km SW Mercatello sul Metauro (PU)

A magnitude ML 1.7 earthquake occured in region: 8 km SW Mercatello sul Metauro (PU), on

  • 23-10-2021 11:51:14 (UTC)
  • 23-10-2021 13:51:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5850, 12.3040 at 9 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
Mercatello sul Metauro PU 8 1378 1378
Borgo Pace PU 8 606 1984
Apecchio PU 10 1882 3866
San Giustino PG 11 11297 15163
Sant'Angelo in Vado PU 13 4133 19296
Sansepolcro AR 13 15884 35180
Sestino AR 14 1355 36535
Città di Castello PG 15 39913 76448
Belforte all'Isauro PU 16 769 77217
Badia Tedalda AR 17 1087 78304
Piobbico PU 17 2029 80333
Citerna PG 18 3531 83864
Piandimeleto PU 18 2167 86031
Monterchi AR 19 1757 87788
Pietralunga PG 19 2111 89899
Lunano PU 20 1527 91426
Monte Santa Maria Tiberina PG 20 1183 92609
Peglio PU 20 696 93305

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Arezzo (99543 inhabitants)
54 Km N of Perugia (166134 inhabitants)
57 Km SW of Rimini (147750 inhabitants)
61 Km SW of Pesaro (94582 inhabitants)
62 Km S of Cesena (96758 inhabitants)
64 Km W of Fano (60888 inhabitants)
74 Km S of Forlì (117913 inhabitants)
77 Km NW of Foligno (57155 inhabitants)
84 Km E of Siena (53903 inhabitants)
85 Km SE of Faenza (58541 inhabitants)
87 Km E of Firenze (382808 inhabitants)
92 Km E of Scandicci (50609 inhabitants)
93 Km S of Ravenna (159116 inhabitants)
98 Km SE of Imola (69797 inhabitants)
98 Km W 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 1.7 2021-10-23
11:51:14		 43.5852 12.3037 9 2022-03-30
13:04:13		 Bollettino Sismico Italiano INGV 96980171
Reviewed
Rev100 		ML 1.7 2021-10-23
11:51:14		 43.5833 12.3065 9 2021-10-23
12:04:10		 Sala Sismica INGV-Roma 96908521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-23 11:51:14 ± 0.05
Latitude 43.5852 ± 0.0027
Longitude 12.3037 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96980171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 294
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 67
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47035
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 96980171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-16 16:16:12

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 96908521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-23 12:04:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.DAVOX.HHZ. 2021-10-23T11:52:58.10 3.0 undecidable manual Sn 0.12 0
CR.ZAG.BHZ. 2021-10-23T11:52:53.94 3.0 undecidable manual Sn 0.86 0
IV.BRES.EHZ. 2021-10-23T11:52:49.19 3.0 undecidable manual Sn 0.98 0
IV.HVIT.HHZ. 2021-10-23T11:52:48.83 3.0 positive manual Pg 12.84 0
GU.CANO.HHZ. 2021-10-23T11:52:44.52 3.0 undecidable manual Sg 12.17 0
IV.FERC.HHZ.00 2021-10-23T11:52:42.72 3.0 undecidable manual Pg 17.82 0
IV.CMPR.HHZ. 2021-10-23T11:52:35.82 3.0 undecidable manual Sn -5.5 0
IX.COL3.HHZ.02 2021-10-23T11:52:35.94 3.0 undecidable manual Sg 0.83 0
IV.TREG.HNZ. 2021-10-23T11:52:30.67 3.0 undecidable manual Sg 9.04 0
IV.ROVR.HHZ. 2021-10-23T11:52:29.88 3.0 undecidable manual Sg 4.92 0
IV.ECTS.HHZ. 2021-10-23T11:52:27.74 3.0 positive manual Pn 1.03 0
OT.OT17.EHZ. 2021-10-23T11:52:26.32 3.0 undecidable manual Sg 5.31 0
GU.BHB.HHZ. 2021-10-23T11:52:12.87 3.0 positive manual Pn 6.51 0
IV.SBPO.HNZ. 2021-10-23T11:52:09.05 3.0 undecidable manual Sn -3.11 0
CH.MUGIO.HHZ. 2021-10-23T11:52:04.60 3.0 undecidable manual Pn 2.21 0
IX.NSC3.EHZ.02 2021-10-23T11:51:58.17 3.0 undecidable manual Pg 5.66 0
IV.VOBA.EHZ. 2021-10-23T11:51:54.60 3.0 undecidable manual Pn 2.83 0
IV.MTRZ.HNZ. 2021-10-23T11:51:54.63 3.0 undecidable manual Sg 2.49 0
IV.COLB.HHZ. 2021-10-23T11:51:50.59 3.0 undecidable manual Pg 4.35 0
OT.OT17.EHZ. 2021-10-23T11:51:50.90 3.0 positive manual Pg 3.22 0
IV.IMOL.HNZ. 2021-10-23T11:51:49.47 3.0 undecidable manual Sn -2.12 0
IV.ZEN8.EHZ. 2021-10-23T11:51:48.11 3.0 undecidable manual Pn -2.74 0
IV.MTRZ.HNZ. 2021-10-23T11:51:33.66 3.0 undecidable manual Pg 2.2 0
IV.FOSV.EHZ. 2021-10-23T11:51:31.20 0.6 undecidable manual S 131 48.9177 50 0.51 42
IV.FDMO.HHZ. 2021-10-23T11:51:30.32 3.0 undecidable manual S 1.04 0
IV.CAFI.HHZ. 2021-10-23T11:51:28.20 0.6 undecidable manual S 224 39.3273 50 0.09 47
IV.SSFR.HHZ. 2021-10-23T11:51:28.90 0.6 undecidable manual S 113 41.9247 50 0.09 47
IV.MURB.HHZ. 2021-10-23T11:51:28.80 0.6 undecidable manual S 153 39.9267 50 0.52 43
IV.LRP.EHZ. 2021-10-23T11:51:27.11 3.0 undecidable manual P -6.54 0
IV.MPAG.EHZ. 2021-10-23T11:51:27.30 0.3 undecidable manual S 82 36.9297 50 -0.18 70
IV.FRON.EHZ. 2021-10-23T11:51:26.80 0.3 undecidable manual S 102 34.743 50 -0.09 71
IV.ATFO.HHZ. 2021-10-23T11:51:26.10 0.6 undecidable manual S 138 32.4453 50 -0.18 47
IV.ARVD.HHZ. 2021-10-23T11:51:25.08 0.3 undecidable manual P 100 52.2033 50 0.61 61
IV.FOSV.EHZ. 2021-10-23T11:51:24.40 0.6 undecidable manual P 131 48.9177 50 0.43 43
IV.SFI.EHZ. 2021-10-23T11:51:24.18 3.0 positive manual P -0.56 0
IV.ATMI.HHZ. 2021-10-23T11:51:24.80 0.3 undecidable manual S 186 27.9498 109 -0.23 70
IV.ATVO.HHZ. 2021-10-23T11:51:23.80 0.3 undecidable manual S 160 23.9538 111 0.07 73
IV.NARO.HHZ. 2021-10-23T11:51:23.00 0.3 undecidable manual S 83 22.4553 113 -0.23 71
IV.PIEI.HHZ. 2021-10-23T11:51:22.30 0.3 undecidable manual S 106 19.3695 116 0.03 74
IV.MURB.HHZ. 2021-10-23T11:51:22.54 0.3 undecidable manual P 153 39.9267 50 -0.04 72
IV.CAFI.HHZ. 2021-10-23T11:51:22.37 0.3 undecidable manual P 224 39.3273 50 -0.11 71
IV.PE3.EHZ. 2021-10-23T11:51:22.67 0.6 undecidable manual S 51 19.7691 115 0.29 47
IV.SSFR.HHZ. 2021-10-23T11:51:22.74 0.3 undecidable manual P 113 41.9247 50 -0.14 70
IV.RCAV.EHZ. 2021-10-23T11:51:21.89 3.0 positive manual P -5.82 0
IV.FRON.EHZ. 2021-10-23T11:51:21.45 0.3 undecidable manual P 102 34.743 50 -0.33 68
IV.MPAG.EHZ. 2021-10-23T11:51:21.88 0.3 undecidable manual P 82 36.9297 50 -0.24 69
IV.ATFO.HHZ. 2021-10-23T11:51:21.15 0.3 undecidable manual P 138 32.4453 50 -0.28 69
IV.ATPI.EHZ. 2021-10-23T11:51:21.50 0.3 undecidable manual S 152 16.872 119 0 75
IV.CSNT.HHZ. 2021-10-23T11:51:21.54 3.0 positive manual P -0.23 0
IV.ATMI.HHZ. 2021-10-23T11:51:20.63 0.3 undecidable manual P 186 27.9498 109 -0.08 72
IV.SSP9.EHZ. 2021-10-23T11:51:20.90 0.3 undecidable manual S 265 13.875 124 0.29 71
IV.SAIV.HNN. 2021-10-23T11:51:20.50 0.6 undecidable manual S 45 12.4764 127 0.3 47
IV.ATVO.HHZ. 2021-10-23T11:51:19.90 0.1 positive manual P 160 23.9538 111 -0.06 98
IV.PARC.HHZ. 2021-10-23T11:51:19.00 0.3 undecidable manual S 323 8.7801 137 -0.25 72
IV.PE3.EHZ. 2021-10-23T11:51:19.25 0.1 undecidable manual P 51 19.7691 115 0.08 98
IV.APEC.HHZ. 2021-10-23T11:51:19.80 0.6 undecidable manual S 108 9.7791 134 0.3 48
IV.NARO.HHZ. 2021-10-23T11:51:19.37 0.3 undecidable manual P 83 22.4553 113 -0.29 70
IV.BADI.EHZ. 2021-10-23T11:51:19.30 0.3 undecidable manual S 210 9.6792 134 -0.16 74
IV.ATPI.EHZ. 2021-10-23T11:51:18.67 0.1 positive manual P 152 16.872 119 0.01 100
IV.RMP.HHZ. 2021-10-23T11:51:18.31 3.0 positive manual P -8.86 0
IV.PIEI.HHZ. 2021-10-23T11:51:18.98 0.1 positive manual P 106 19.3695 116 -0.13 97
IV.SSP9.EHZ. 2021-10-23T11:51:18.26 0.3 undecidable manual P 265 13.875 124 0.11 74
IV.TOLF.HHZ. 2021-10-23T11:51:17.33 3.0 undecidable manual P -4.83 0
IV.APEC.HHZ. 2021-10-23T11:51:17.66 0.1 positive manual P 108 9.7791 134 0.15 98
IV.PARC.HHZ. 2021-10-23T11:51:17.31 0.3 undecidable manual P 323 8.7801 137 -0.05 75
IV.BADI.EHZ. 2021-10-23T11:51:17.55 0.1 positive manual P 210 9.6792 134 0.06 100
IV.SAIV.HNN. 2021-10-23T11:51:17.97 0.6 undecidable manual P 45 12.4764 127 0.05 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHE. ML:2.0 0.0014399999999999999 0.42 AML other m 2021-10-23T11:51:19.63
IV.BADI.EHN. ML:2.1 0.00155 0.9 AML other m 2021-10-23T11:51:19.44
IV.SSP9.EHE. ML:1.1 0.00014715 0.64 AML other m 2021-10-23T11:51:21.41
IV.SSP9.EHN. ML:1.2 0.0001605 0.42 AML other m 2021-10-23T11:51:21.86
IV.APEC.HHN. ML:1.9 0.0011619999999999998 0.24 AML other m 2021-10-23T11:51:22.37
IV.PIEI.HHN. ML:1.5 0.00023349999999999998 0.06 AML other m 2021-10-23T11:51:22.50
IV.APEC.HHE. ML:2.0 0.0014100000000000002 0.34 AML other m 2021-10-23T11:51:22.57
IV.ATPI.EHN. ML:1.6 0.000343 1.58 AML other m 2021-10-23T11:51:22.19
IV.ATPI.EHE. ML:1.7 0.000429 0.58 AML other m 2021-10-23T11:51:23.72
IV.NARO.HHN. ML:1.6 0.00026900000000000003 0.26 AML other m 2021-10-23T11:51:23.64
IV.PE3.EHE. ML:1.8 0.0005155000000000001 0.3 AML other m 2021-10-23T11:51:23.50
IV.NARO.HHE. ML:1.4 0.00015 1.24 AML other m 2021-10-23T11:51:23.31
IV.PIEI.HHE. ML:1.7 0.00038449999999999997 0.54 AML other m 2021-10-23T11:51:24.08
IV.ATVO.HHN. ML:2.0 0.0006225 0.2 AML other m 2021-10-23T11:51:24.33
IV.ATVO.HHE. ML:2.3 0.00134 0.18 AML other m 2021-10-23T11:51:24.34
IV.ATMI.HHE. ML:1.7 0.00027 0.22 AML other m 2021-10-23T11:51:25.45
IV.ATMI.HHN. ML:1.9 0.0004255 0.38 AML other m 2021-10-23T11:51:25.30
IV.ATFO.HHE. ML:1.8 0.000251 0.22 AML other m 2021-10-23T11:51:26.91
IV.ATFO.HHN. ML:1.7 0.0002375 0.18 AML other m 2021-10-23T11:51:27.45
IV.PE3.EHN. ML:1.9 0.0006145 0.46 AML other m 2021-10-23T11:51:27.75
IV.FRON.EHN. ML:1.6 0.0001835 0.62 AML other m 2021-10-23T11:51:27.83
IV.MPAG.EHE. ML:1.3 0.0000776 0.12 AML other m 2021-10-23T11:51:27.74
IV.MPAG.EHN. ML:1.4 0.00010600000000000002 0.28 AML other m 2021-10-23T11:51:27.80
IV.FRON.EHE. ML:1.3 0.00007835000000000001 1.74 AML other m 2021-10-23T11:51:27.89
IV.MURB.HHE. ML:2.4 0.0008694999999999999 0.28 AML other m 2021-10-23T11:51:29.18
IV.MURB.HNE. ML:2.4 0.0008165 0.3 AML other m 2021-10-23T11:51:29.18
IV.SSFR.HHE. ML:1.9 0.000275 0.34 AML other m 2021-10-23T11:51:29.30
IV.MURB.HHN. ML:2.3 0.0006659999999999999 0.36 AML other m 2021-10-23T11:51:29.72
IV.MURB.HNN. ML:2.2 0.000609 0.34 AML other m 2021-10-23T11:51:29.73
IV.CAFI.HHE. ML:1.3 0.00007335 1.8 AML other m 2021-10-23T11:51:29.01
IV.SSFR.HNE. ML:2.0 0.0003665 1.54 AML other m 2021-10-23T11:51:29.96
IV.CAFI.HHN. ML:1.4 0.00009554999999999999 0.42 AML other m 2021-10-23T11:51:30.10
IV.SSFR.HNN. ML:2.2 0.000463 0.88 AML other m 2021-10-23T11:51:30.58
IV.FOSV.EHE. ML:1.2 0.0000421 1.36 AML other m 2021-10-23T11:51:31.78
IV.FOSV.EHN. ML:1.3 0.0000531 1.62 AML other m 2021-10-23T11:51:32.07
IV.SSFR.HHN. ML:2.0 0.000345 0.2 AML other m 2021-10-23T11:51:32.27
IV.ARVD.HHE. ML:1.3 0.00004905 0.78 AML other m 2021-10-23T11:51:32.93
IV.ARVD.HHN. ML:1.4 0.00006429999999999999 0.8 AML other m 2021-10-23T11:51:32.55
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