Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 20-03-2023 and time 07:14:25 (Italy) in region 8 km N Gubbio (PG)

A magnitude ML 1.1 earthquake occured in region: 8 km N Gubbio (PG), on

  • 20-03-2023 06:14:25 (UTC)
  • 20-03-2023 07:14:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4220, 12.5530 at 10 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
Gubbio PG 8 32216 32216
Cantiano PU 8 2245 34461
Scheggia e Pascelupo PG 10 1393 35854
Pietralunga PG 10 2111 37965
Costacciaro PG 15 1216 39181
Cagli PU 16 8731 47912
Sigillo PG 18 2404 50316
Frontone PU 18 1300 51616
Apecchio PU 19 1882 53498
Piobbico PU 19 2029 55527
Serra Sant'Abbondio PU 19 1027 56554
Montone PG 19 1680 58234

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Perugia (166134 inhabitants)
53 Km N of Foligno (57155 inhabitants)
54 Km E of Arezzo (99543 inhabitants)
60 Km SW of Fano (60888 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
71 Km S of Rimini (147750 inhabitants)
81 Km W of Ancona (100861 inhabitants)
83 Km SE of Cesena (96758 inhabitants)
96 Km N of Terni (111501 inhabitants)
98 Km SE of Forlì (117913 inhabitants)
99 Km E of Siena (53903 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 1.1 2023-03-20
06:14:25		 43.4222 12.5533 10 2023-03-20
06:20:37		 Sala Sismica INGV-Roma 115554341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-20 06:14:25 ± 0.04
Latitude 43.4222 ± 0.0018
Longitude 12.5533 ± 0.0025
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115554341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 149
Semi-minor axis of confidence ellipse (meter) 149
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.43347
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 115554341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-20 06:20:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VARE.HHZ. 2023-03-20T06:15:41.34 3.0 undecidable manual Sg 1 0
7C.CSGE1.HNZ. 2023-03-20T06:15:35.15 3.0 undecidable manual Pg 16.879999 0
IV.SBPO.HNZ. 2023-03-20T06:15:21.84 3.0 undecidable manual Sg 2.61 0
IV.ACER.HHZ. 2023-03-20T06:15:15.74 3.0 negative manual Pg 16.35 0
IV.ACATE.HNZ. 2023-03-20T06:15:14.14 3.0 positive manual Pn -4.03 0
IV.IFIL.HHZ. 2023-03-20T06:15:13.68 3.0 positive manual Pg 11.36 0
IV.MPNC.HHZ. 2023-03-20T06:15:09.69 3.0 negative manual Pn -2.65 0
IV.PZUN.HHZ. 2023-03-20T06:15:08.15 3.0 negative manual Pn 9.57 0
IV.SCIAC.HHZ. 2023-03-20T06:15:04.39 3.0 undecidable manual Pn -0.08 0
IV.IMOL.HNZ. 2023-03-20T06:15:04.69 3.0 undecidable manual Sn -3.17 0
IV.MCRV.HHZ. 2023-03-20T06:14:54.50 3.0 undecidable manual Pn 2.86 0
IV.PARC.HHZ. 2023-03-20T06:14:38.39 0.6 undecidable manual S 315 35.6421 50 0.17 46
IV.ARVD.HHZ. 2023-03-20T06:14:37.38 0.3 undecidable manual S 75 32.3454 50 0.04 72
IV.ATCC.EHZ. 2023-03-20T06:14:36.15 0.1 undecidable manual S 165 27.1506 109 0.22 93
IV.MPAG.EHZ. 2023-03-20T06:14:36.13 0.3 undecidable manual S 36 28.3494 50 -0.13 71
IV.EL6.EHZ. 2023-03-20T06:14:35.27 1.0 undecidable manual P 103 45.4212 50 0.75 19
IV.BADI.EHZ. 2023-03-20T06:14:35.54 0.3 undecidable manual S 291 26.751 110 -0.23 70
IV.FOSV.EHZ. 2023-03-20T06:14:34.11 0.3 undecidable manual S 130 21.9669 114 -0.11 72
IV.MML1.EHZ. 2023-03-20T06:14:34.95 1.0 negative manual P 135 48.1185 50 0.01 23
IV.MURB.HHZ. 2023-03-20T06:14:33.03 0.3 undecidable manual S 188 17.7711 118 0.09 73
IV.SSFR.HHZ. 2023-03-20T06:14:33.27 0.3 undecidable manual S 85 18.4704 117 0.12 72
IV.PARC.HHZ. 2023-03-20T06:14:33.18 0.6 undecidable manual P 315 35.6421 50 0.16 46
IV.APEC.HHZ. 2023-03-20T06:14:33.60 0.3 undecidable manual S 325 18.5703 117 0.43 68
IV.ASSB.HHZ. 2023-03-20T06:14:33.97 0.1 positive manual P 169 42.9237 50 -0.17 91
IV.NARO.HHZ. 2023-03-20T06:14:33.71 0.3 undecidable manual S 6 21.0678 115 -0.23 70
IV.ARVD.HHZ. 2023-03-20T06:14:32.40 0.1 positive manual P 75 32.3454 50 -0.11 94
IV.FRON.EHZ. 2023-03-20T06:14:32.86 0.3 undecidable manual S 53 17.4714 119 0.03 74
IV.ATPI.EHZ. 2023-03-20T06:14:31.42 0.1 undecidable manual S 285 12.5763 127 0.01 100
IV.MPAG.EHZ. 2023-03-20T06:14:31.72 0.3 undecidable manual P 36 28.3494 50 -0.17 70
IV.ATVO.HHZ. 2023-03-20T06:14:31.16 0.3 undecidable manual S 249 12.6762 127 -0.27 71
IV.PIEI.HHZ. 2023-03-20T06:14:31.45 0.1 undecidable manual S 353 12.6762 127 0.01 99
IV.BADI.EHZ. 2023-03-20T06:14:31.51 0.6 negative manual P 291 26.751 110 -0.09 48
IV.ATCC.EHZ. 2023-03-20T06:14:31.67 0.3 undecidable manual P 165 27.1506 109 -0.03 73
IV.APEC.HHZ. 2023-03-20T06:14:30.29 0.6 positive manual P 325 18.5703 117 0.19 47
IV.NARO.HHZ. 2023-03-20T06:14:30.44 0.3 undecidable manual P 6 21.0678 115 -0.11 72
IV.MURB.HHZ. 2023-03-20T06:14:30.08 0.1 undecidable manual P 188 17.7711 118 0.11 97
IV.FOSV.EHZ. 2023-03-20T06:14:30.66 0.6 undecidable manual P 130 21.9669 114 -0.05 49
IV.SSFR.HHZ. 2023-03-20T06:14:30.09 0.6 undecidable manual P 85 18.4704 117 0 49
IV.PIEI.HHZ. 2023-03-20T06:14:29.20 0.1 positive manual P 353 12.6762 127 0.09 98
IV.ATFO.HHZ. 2023-03-20T06:14:29.64 0.3 undecidable manual S 167 6.2937 147 -0.27 71
IV.FRON.EHZ. 2023-03-20T06:14:29.92 0.1 positive manual P 53 17.4714 119 0.01 99
IV.ATPI.EHZ. 2023-03-20T06:14:29.15 0.1 undecidable manual P 285 12.5763 127 0.06 98
IV.ATVO.HHZ. 2023-03-20T06:14:29.09 0.1 positive manual P 249 12.6762 127 -0.01 100
IV.MTRZ.HHZ. 2023-03-20T06:14:28.59 3.0 undecidable manual Pn -4.58 0
IV.ATFO.HHZ. 2023-03-20T06:14:28.26 0.1 negative manual P 167 6.2937 147 0.04 100
IV.SRES.HHZ. 2023-03-20T06:14:23.17 3.0 undecidable manual Pn 0.8 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHE. ML:1.1 0.000199 0.32 AML other m 2023-03-20T06:14:30.04
IV.ATFO.HHN. ML:0.9 0.000142 1.02 AML other m 2023-03-20T06:14:30.87
IV.ATVO.HHN. ML:1.0 0.0001065 0.18 AML other m 2023-03-20T06:14:31.32
IV.ATPI.EHN. ML:1.0 0.00010729999999999999 0.38 AML other m 2023-03-20T06:14:31.53
IV.PIEI.HHE. ML:1.2 0.000195 0.36 AML other m 2023-03-20T06:14:31.55
IV.ATPI.EHE. ML:0.8 0.00007555000000000001 1.62 AML other m 2023-03-20T06:14:32.87
IV.ATVO.HHE. ML:1.0 0.00011149999999999999 0.82 AML other m 2023-03-20T06:14:32.52
IV.PIEI.HHN. ML:1.1 0.000135 0.3 AML other m 2023-03-20T06:14:32.39
IV.FRON.EHE. ML:0.8 0.0000513 0.08 AML other m 2023-03-20T06:14:33.21
IV.MURB.HHN. ML:1.6 0.000375 0.26 AML other m 2023-03-20T06:14:33.24
IV.SSFR.HHN. ML:1.4 0.0001795 0.3 AML other m 2023-03-20T06:14:33.34
IV.SSFR.HNN. ML:1.6 0.0003355 0.7 AML other m 2023-03-20T06:14:33.34
IV.MURB.HHE. ML:1.6 0.000329 0.2 AML other m 2023-03-20T06:14:33.69
IV.FRON.EHN. ML:1.0 0.00008735 0.08 AML other m 2023-03-20T06:14:33.76
IV.NARO.HHE. ML:1.2 0.0001102 0.14 AML other m 2023-03-20T06:14:33.81
IV.NARO.HHN. ML:1.0 0.00007035 0.62 AML other m 2023-03-20T06:14:34.34
IV.SSFR.HNE. ML:1.5 0.0002405 0.22 AML other m 2023-03-20T06:14:34.31
IV.SSFR.HHE. ML:1.3 0.0001525 1.22 AML other m 2023-03-20T06:14:34.83
IV.FOSV.EHE. ML:0.7 0.000034149999999999997 0.24 AML other m 2023-03-20T06:14:34.47
IV.FOSV.EHN. ML:0.8 0.00004315 0.26 AML other m 2023-03-20T06:14:34.77
IV.BADI.EHE. ML:1.2 0.000096 1.48 AML other m 2023-03-20T06:14:36.83
IV.BADI.EHN. ML:1.4 0.0001555 1.42 AML other m 2023-03-20T06:14:36.82
IV.MPAG.EHN. ML:0.8 0.00003345 0.22 AML other m 2023-03-20T06:14:36.27
IV.ATCC.EHE. ML:1.5 0.0001575 1.34 AML other m 2023-03-20T06:14:36.29
IV.MPAG.EHE. ML:0.8 0.00003235000000000001 0.44 AML other m 2023-03-20T06:14:36.54
IV.ATCC.EHN. ML:1.3 0.0001027 0.2 AML other m 2023-03-20T06:14:36.46
IV.PARC.HHE. ML:0.9 0.0000305 0.16 AML other m 2023-03-20T06:14:39.80
IV.PARC.HHN. ML:1.0 0.000033350000000000004 0.2 AML other m 2023-03-20T06:14:39.77
IV.ASSB.HHN. ML:0.8 0.000019999999999999998 0.26 AML other m 2023-03-20T06:14:40.73
IV.ASSB.HHE. ML:0.8 0.00002165 1 AML other m 2023-03-20T06:14:42.13
IV.MML1.EHN. ML:0.9 0.000019 0.56 AML other m 2023-03-20T06:14:42.47
IV.MML1.EHE. ML:0.7 0.000015280000000000003 0.54 AML other m 2023-03-20T06:14:47.64
IV.EL6.EHN. ML:1.5 0.0000826 0.42 AML other m 2023-03-20T06:14:47.92
IV.EL6.EHE. ML:1.1 0.0000356 0.48 AML other m 2023-03-20T06:14:48.13
IV.APEC.HHE. ML:1.2 0.0001295 1.26 AML other m 2023-03-20T06:14:49.88
IV.APEC.HHN. ML:1.1 0.00009825 0.08 AML other m 2023-03-20T06:14:54.00
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