Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 20-03-2023 and time 13:59:46 (Italy) in region 5 km S Serra Sant'Abbondio (PU)

A magnitude ML 1.8 earthquake occured in region: 5 km S Serra Sant'Abbondio (PU), on

  • 20-03-2023 12:59:46 (UTC)
  • 20-03-2023 13:59:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4430, 12.7660 at 54 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
Serra Sant'Abbondio PU 5 1027 1027
Sassoferrato AN 8 7285 8312
Frontone PU 8 1300 9612
Scheggia e Pascelupo PG 9 1393 11005
Costacciaro PG 10 1216 12221
Cantiano PU 12 2245 14466
Sigillo PG 13 2404 16870
Genga AN 14 1797 18667
Pergola PU 15 6333 25000
Cagli PU 15 8731 33731
Arcevia AN 16 4612 38343
Fabriano AN 16 31480 69823
Fossato di Vico PG 17 2840 72663
Gubbio PG 18 32216 104879

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Perugia (166134 inhabitants)
49 Km SW of Fano (60888 inhabitants)
53 Km S of Pesaro (94582 inhabitants)
54 Km N of Foligno (57155 inhabitants)
64 Km W of Ancona (100861 inhabitants)
71 Km S of Rimini (147750 inhabitants)
71 Km E of Arezzo (99543 inhabitants)
88 Km SE of Cesena (96758 inhabitants)
99 Km N of Terni (111501 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 1.8 2023-03-20
12:59:46		 43.4433 12.7655 54 2024-03-01
17:17:59		 Bollettino Sismico Italiano INGV 115591911
Reviewed
Rev100 		ML 1.9 2023-03-20
12:59:46		 43.4387 12.776 57 2023-03-20
13:09:53		 Sala Sismica INGV-Roma 115563681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-20 12:59:46 ± 0.12
Latitude 43.4433 ± 0.0072
Longitude 12.7655 ± 0.0087
Depth (km) 54 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115591911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 835
Semi-minor axis of confidence ellipse (meter) 170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 81
Number of defining phases 70
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.99015
Number of stations at which the event was observed 53
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 115591911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-21 13:47:13

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 115563681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-20 13:09:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HNZ. 2023-03-20T13:01:02.73 3.0 undecidable manual Sg 11.66 0
IV.ROVR.HNZ. 2023-03-20T13:00:52.97 3.0 undecidable manual Sn -2.43 0
IV.MCRV.HHZ. 2023-03-20T13:00:34.84 3.0 undecidable manual Pn -0.82 0
IV.ZEN8.HNZ. 2023-03-20T13:00:27.70 3.0 undecidable manual Pn 0.42 0
IT.GLNS.HNZ. 2023-03-20T13:00:21.49 3.0 undecidable manual Pn -0.49 0
IV.BDI.HHZ. 2023-03-20T13:00:19.52 3.0 undecidable manual Pg 5.16 0
IV.ZCCA.HHZ. 2023-03-20T13:00:17.10 3.0 undecidable manual Pg 4.25 0
IV.IMOL.HNZ. 2023-03-20T13:00:10.17 3.0 negative manual Pg 2.79 0
IV.CESI.HHZ. 2023-03-20T13:00:06.27 0.6 undecidable manual S 167 49.9167 127 0.18 47
IV.PARC.HHZ. 2023-03-20T13:00:05.91 1.0 undecidable manual S 298 48.1185 129 0.13 24
IV.BADI.EHZ. 2023-03-20T13:00:05.04 0.6 undecidable manual S 280 42.624 133 0.16 48
IV.RM33.HNZ. 2023-03-20T13:00:05.11 0.6 undecidable manual P 160 109.9122 103 0.43 39
IV.ASSB.HHZ. 2023-03-20T13:00:05.61 0.6 undecidable manual S 191 45.3213 131 0.3 46
IV.CING.HHZ. 2023-03-20T13:00:04.17 1.0 undecidable manual S 102 35.4423 139 0.36 23
IV.ATMI.HHZ. 2023-03-20T13:00:04.92 0.6 undecidable manual S 253 41.9247 134 0.15 48
IV.MML1.EHZ. 2023-03-20T13:00:04.38 0.1 undecidable manual S 155 40.2264 135 -0.13 97
IV.GUMA.HHZ. 2023-03-20T13:00:03.49 3.0 positive manual Pg 3.77 0
IV.ATVO.HHZ. 2023-03-20T13:00:03.35 0.3 undecidable manual S 257 29.748 145 0.3 71
IV.TSM3.DH2.07 2023-03-20T13:00:03.50 0.3 undecidable manual S 259 33.744 141 -0.07 74
IV.ATPI.EHZ. 2023-03-20T13:00:03.32 0.6 undecidable manual S 272 29.2485 145 0.32 47
IV.ATLO.EHE. 2023-03-20T13:00:03.12 0.6 undecidable manual S 244 32.2455 142 -0.25 48
IV.TB02.DHZ.01 2023-03-20T13:00:03.36 0.6 undecidable manual S 254 29.8479 145 0.3 48
IV.MURB.HHZ. 2023-03-20T13:00:03.25 0.3 undecidable manual S 224 27.8499 147 0.42 70
IV.EL6.EHZ. 2023-03-20T13:00:03.63 0.6 undecidable manual S 115 29.9478 145 0.56 45
IV.SMA1.EHZ. 2023-03-20T13:00:03.69 1.0 undecidable manual P 153 101.3208 105 0.04 22
IV.TB03.DHZ.01 2023-03-20T13:00:03.54 0.3 undecidable manual S 261 28.9488 146 0.58 67
IV.ATCC.EHZ. 2023-03-20T13:00:03.51 0.3 undecidable manual S 200 30.3474 144 0.38 70
IV.TB01.DHZ.01 2023-03-20T13:00:03.06 0.6 undecidable manual S 256 27.4503 147 0.28 48
IV.MMUR.HNE. 2023-03-20T13:00:02.26 0.6 undecidable manual S 90 18.6702 157 0.37 48
IV.NARO.HHZ. 2023-03-20T13:00:02.47 0.3 undecidable manual S 321 23.754 151 0.1 76
IV.MPAG.EHZ. 2023-03-20T13:00:02.49 0.3 undecidable manual S 359 20.6682 155 0.43 71
IV.CESX.HHZ. 2023-03-20T13:00:02.72 3.0 undecidable manual Pn -0.55 0
IV.SNTG.HHZ. 2023-03-20T13:00:02.14 0.3 undecidable manual S 146 25.2525 150 -0.38 70
IV.ARVD.HHZ. 2023-03-20T13:00:02.23 0.3 undecidable manual S 67 15.3735 161 0.6 69
IV.ATFO.HHZ. 2023-03-20T13:00:01.73 0.3 undecidable manual S 241 17.7711 158 -0.09 76
IV.PIEI.HHZ. 2023-03-20T13:00:01.95 0.1 undecidable manual S 299 21.1677 154 -0.16 98
IV.GAVE.EHZ. 2023-03-20T13:00:01.99 0.6 undecidable manual P 173 83.9493 110 0.4 42
IV.FRON.EHZ. 2023-03-20T13:00:01.14 0.3 undecidable manual S 339 8.88 169 -0.12 76
IV.ATSC.EHE. 2023-03-20T13:00:00.73 0.3 undecidable manual S 251 6.6933 171 -0.45 71
IV.MF5.EHZ. 2023-03-20T13:00:00.79 0.6 undecidable manual P 132 75.5688 113 0.18 45
IV.CRE.HHZ. 2023-03-20T13:00:00.05 0.6 undecidable manual P 287 68.2761 116 0.26 45
IV.SSFR.HHZ. 2023-03-20T13:00:00.74 0.3 undecidable manual S 120 1.5984 178 -0.34 74
IV.FOSV.EHZ. 2023-03-20T13:00:00.76 0.3 undecidable manual S 181 16.4724 159 -0.95 58
IV.NRCA.HHZ. 2023-03-20T13:00:00.78 0.6 undecidable manual P 157 73.2711 114 0.42 42
IV.MOMA.HHZ. 2023-03-20T12:59:59.71 0.6 undecidable manual P 193 72.6717 114 -0.58 42
IV.CAFI.HHZ. 2023-03-20T12:59:59.27 0.3 undecidable manual P 259 65.6898 118 -0.23 68
IV.CRTC.HHZ. 2023-03-20T12:59:58.27 3.0 undecidable manual Pg 0
IV.CSP1.EHZ. 2023-03-20T12:59:58.42 0.3 undecidable manual P 138 52.7028 125 0.3 68
IV.ASSB.HHZ. 2023-03-20T12:59:57.50 0.3 undecidable manual P 191 45.3213 131 0.1 72
IV.CESI.HHZ. 2023-03-20T12:59:57.65 0.3 undecidable manual P 167 49.9167 127 -0.2 71
IV.PARC.HHZ. 2023-03-20T12:59:57.95 0.6 undecidable manual P 298 48.1185 129 0.28 46
IV.BADI.EHZ. 2023-03-20T12:59:57.63 0.3 undecidable manual P 280 42.624 133 0.48 67
IV.ATMI.HHZ. 2023-03-20T12:59:57.19 0.3 undecidable manual P 253 41.9247 134 0.11 72
IV.PF6.EHN. 2023-03-20T12:59:57.88 0.6 undecidable manual P 134 48.4182 128 0.18 47
IV.EL6.EHZ. 2023-03-20T12:59:56.16 0.3 undecidable manual P 115 29.9478 145 0.05 75
IV.TB03.DHZ.01 2023-03-20T12:59:56.08 0.3 undecidable manual P 261 28.9488 146 0.04 75
IV.MML1.EHZ. 2023-03-20T12:59:56.60 0.3 undecidable manual P 155 40.2264 135 -0.33 70
IV.ATVO.HHZ. 2023-03-20T12:59:56.16 0.1 undecidable manual P 257 29.748 145 0.07 100
IV.CING.HHZ. 2023-03-20T12:59:56.97 0.3 undecidable manual P 102 35.4423 139 0.44 69
IV.TSM3.DH2.07 2023-03-20T12:59:56.43 0.3 undecidable manual P 259 33.744 141 0.04 75
IV.ATPI.EHZ. 2023-03-20T12:59:56.16 0.1 undecidable manual P 272 29.2485 145 0.1 99
IV.COR1.HNN. 2023-03-20T12:59:56.90 0.6 undecidable manual P 42 28.1496 146 0.92 39
IV.ATLO.EHE. 2023-03-20T12:59:56.17 0.3 undecidable manual P 244 32.2455 142 -0.1 74
IV.TB02.DHZ.01 2023-03-20T12:59:56.20 0.1 undecidable manual P 254 29.8479 145 0.1 99
IV.MURB.HHZ. 2023-03-20T12:59:55.92 0.3 positive manual P 224 27.8499 147 -0.04 76
IV.SNTG.HHZ. 2023-03-20T12:59:55.51 0.3 undecidable manual P 146 25.2525 150 -0.28 72
IV.ATPC.HHE. 2023-03-20T12:59:55.73 0.3 undecidable manual P 280 25.1526 150 -0.06 76
IV.ATCC.EHZ. 2023-03-20T12:59:55.92 0.1 undecidable manual P 200 30.3474 144 -0.22 97
IV.TB01.DHZ.01 2023-03-20T12:59:55.92 0.3 undecidable manual P 256 27.4503 147 -0.01 76
IV.ARVD.HHZ. 2023-03-20T12:59:55.29 0.3 undecidable manual P 67 15.3735 161 0.01 78
IV.ATBU.EHZ. 2023-03-20T12:59:55.20 0.3 undecidable manual P 282 17.871 158 -0.18 74
IV.MMUR.HNE. 2023-03-20T12:59:55.66 0.6 undecidable manual P 90 18.6702 157 0.24 49
IV.ATFO.HHZ. 2023-03-20T12:59:55.12 0.1 positive manual P 241 17.7711 158 -0.26 98
IV.NARO.HHZ. 2023-03-20T12:59:55.47 0.1 positive manual P 321 23.754 151 -0.23 97
IV.MPAG.EHZ. 2023-03-20T12:59:55.67 0.1 positive manual P 359 20.6682 155 0.15 100
IV.TSM2.DHN.01 2023-03-20T12:59:55.42 0.3 undecidable manual P 257 22.755 152 -0.22 73
IV.PIEI.HHZ. 2023-03-20T12:59:55.18 0.3 positive manual P 299 21.1677 154 -0.37 71
IV.FOSV.EHZ. 2023-03-20T12:59:54.53 0.1 undecidable manual P 181 16.4724 159 -0.79 83
IV.FRON.EHZ. 2023-03-20T12:59:54.73 0.1 undecidable manual P 339 8.88 169 -0.33 98
IV.ATSC.EHE. 2023-03-20T12:59:54.45 0.3 undecidable manual P 251 6.6933 171 -0.56 69
IV.SSFR.HHZ. 2023-03-20T12:59:54.47 0.1 undecidable manual P 120 1.5984 178 -0.48 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:1.8 0.0001305 1.72 AML other m 2023-03-20T13:00:00.86
IV.FOSV.EHN. ML:1.7 0.0001215 0.46 AML other m 2023-03-20T13:00:01.18
IV.FRON.EHN. ML:2.1 0.000294 0.46 AML other m 2023-03-20T13:00:01.45
IV.ATFO.HHN. ML:1.6 0.00009975 1.24 AML other m 2023-03-20T13:00:01.87
IV.FRON.EHE. ML:2.0 0.0002175 0.48 AML other m 2023-03-20T13:00:02.36
IV.PIEI.HHN. ML:1.8 0.00013550000000000001 0.16 AML other m 2023-03-20T13:00:02.12
IV.PIEI.HNE. ML:2.1 0.00028500000000000004 0.1 AML other m 2023-03-20T13:00:02.39
IV.PIEI.HHE. ML:2.2 0.00033150000000000003 0.08 AML other m 2023-03-20T13:00:02.39
IV.PIEI.HNN. ML:1.9 0.0001885 0.9 AML other m 2023-03-20T13:00:02.58
IV.ARVD.HHN. ML:1.7 0.0001175 0.22 AML other m 2023-03-20T13:00:02.64
IV.ARVD.HHE. ML:1.9 0.00016900000000000002 0.14 AML other m 2023-03-20T13:00:02.74
IV.ATFO.HHE. ML:1.8 0.00012754999999999998 0.5 AML other m 2023-03-20T13:00:02.56
IV.NARO.HHE. ML:2.2 0.000326 0.08 AML other m 2023-03-20T13:00:02.92
IV.MPAG.EHN. ML:2.2 0.0003135 0.22 AML other m 2023-03-20T13:00:03.11
IV.MPAG.EHE. ML:2.1 0.0002635 0.24 AML other m 2023-03-20T13:00:03.15
IV.NARO.HHN. ML:1.9 0.00016499999999999997 1.56 AML other m 2023-03-20T13:00:03.08
IV.ATCC.EHN. ML:1.9 0.0001605 0.48 AML other m 2023-03-20T13:00:03.80
IV.ATVO.HHE. ML:1.8 0.000141 1.32 AML other m 2023-03-20T13:00:03.78
IV.ATVO.HHN. ML:1.9 0.0001445 0.36 AML other m 2023-03-20T13:00:03.63
IV.SNTG.HHE. ML:1.8 0.0001305 0.28 AML other m 2023-03-20T13:00:03.98
IV.SNTG.HHN. ML:1.7 0.00011545 1.44 AML other m 2023-03-20T13:00:03.96
IV.ATPI.EHE. ML:1.7 0.0000973 1.46 AML other m 2023-03-20T13:00:04.03
IV.ATCC.EHE. ML:1.9 0.000167 1.5 AML other m 2023-03-20T13:00:04.12
IV.ATPI.EHN. ML:1.8 0.000136 0.6 AML other m 2023-03-20T13:00:04.39
IV.MML1.EHN. ML:1.8 0.0001255 1.38 AML other m 2023-03-20T13:00:04.69
IV.ATMI.HHN. ML:1.7 0.0000807 0.3 AML other m 2023-03-20T13:00:05.82
IV.ASSB.HHN. ML:1.8 0.0001095 0.16 AML other m 2023-03-20T13:00:06.07
IV.BADI.EHE. ML:2.0 0.00015534999999999998 1.26 AML other m 2023-03-20T13:00:06.11
IV.CING.HHN. ML:1.8 0.000133 0.22 AML other m 2023-03-20T13:00:06.02
IV.CING.HHE. ML:1.8 0.00011999999999999999 0.28 AML other m 2023-03-20T13:00:06.18
IV.MML1.EHE. ML:1.8 0.00011549999999999999 0.42 AML other m 2023-03-20T13:00:06.61
IV.BADI.EHN. ML:1.5 0.0000567 0.3 AML other m 2023-03-20T13:00:06.51
IV.EL6.EHE. ML:2.0 0.00021450000000000004 0.32 AML other m 2023-03-20T13:00:06.93
IV.CESI.HHN. ML:1.6 0.00006305 1.7 AML other m 2023-03-20T13:00:07.93
IV.EL6.EHN. ML:2.0 0.0002165 0.5 AML other m 2023-03-20T13:00:07.81
IV.ASSB.HHE. ML:1.7 0.00008 1.02 AML other m 2023-03-20T13:00:07.07
IV.CESI.HHE. ML:1.6 0.0000613 0.82 AML other m 2023-03-20T13:00:08.23
IV.CAFI.HHN. ML:1.6 0.0000493 0.16 AML other m 2023-03-20T13:00:08.37
IV.ATMI.HHE. ML:1.8 0.00011649999999999999 0.34 AML other m 2023-03-20T13:00:08.57
IV.CAFI.HHE. ML:1.6 0.00005535 0.26 AML other m 2023-03-20T13:00:08.74
IV.GAVE.EHN. ML:1.9 0.00007355 1.5 AML other m 2023-03-20T13:00:13.12
IV.NRCA.HHN. ML:1.8 0.0000705 0.58 AML other m 2023-03-20T13:00:14.29
IV.NRCA.HHE. ML:1.7 0.00005425 0.16 AML other m 2023-03-20T13:00:14.09
IV.GAVE.EHE. ML:1.8 0.0000633 0.24 AML other m 2023-03-20T13:00:14.03
IV.CESX.HHE. ML:1.7 0.00003895 0.92 AML other m 2023-03-20T13:00:16.42
IV.CESX.HHN. ML:1.8 0.0000541 0.9 AML other m 2023-03-20T13:00:16.98
IV.SMA1.EHE. ML:1.8 0.00004775 1.5 AML other m 2023-03-20T13:00:22.89
IV.SMA1.EHN. ML:1.8 0.0000553 0.32 AML other m 2023-03-20T13:00:24.99
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