Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 27-02-2023 and time 14:37:17 (UTC) in region 3 km S Visso (MC)

A magnitude ML 1.0 earthquake occured in region: 3 km S Visso (MC), on

  • 27-02-2023 14:37:17 (UTC)
  • 27-02-2023 15:37:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9030, 13.0780 at 12 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
Visso MC 3 1107 1107
Preci PG 4 724 1831
Castelsantangelo sul Nera MC 6 281 2112
Ussita MC 7 444 2556
Monte Cavallo MC 12 145 2701
Norcia PG 12 4957 7658
Sellano PG 12 1079 8737
Fiordimonte MC 15 202 8939
Bolognola MC 16 142 9081
Pieve Torina MC 16 1458 10539
Cerreto di Spoleto PG 16 1075 11614
Acquacanina MC 16 121 11735
Fiastra MC 16 559 12294
Pievebovigliana MC 18 866 13160

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
98 Km W of Montesilvano (53738 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 1.0 2023-02-27
14:37:17		 42.9033 13.0782 12 2023-02-27
14:46:01		 Sala Sismica INGV-Roma 114857101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-27 14:37:17 ± 0.05
Latitude 42.9033 ± 0.0018
Longitude 13.0782 ± 0.0037
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114857101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 266
Semi-minor axis of confidence ellipse (meter) 97
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25091
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 114857101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-27 14:46:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2023-02-27T14:38:06.51 3.0 undecidable manual Sg 6.37 0
IV.EPZF.HHZ. 2023-02-27T14:37:54.49 3.0 undecidable manual Pn 1.67 0
IV.SPS2.HHZ. 2023-02-27T14:37:48.62 3.0 negative manual Pn 1.04 0
IV.ARCI.HHZ. 2023-02-27T14:37:37.56 3.0 undecidable manual Sn -7.47 0
IV.SIRI.HNZ. 2023-02-27T14:37:37.83 3.0 undecidable manual Pn 0.85 0
IV.PII.HHZ. 2023-02-27T14:37:35.77 3.0 negative manual Pn -1.52 0
IV.CSNT.HHZ. 2023-02-27T14:37:28.45 3.0 positive manual Pn -2.22 0
IV.GAVE.EHZ. 2023-02-27T14:37:27.73 0.6 undecidable manual S 213 27.8499 94 0.19 47
IV.RIBO.EHZ.01 2023-02-27T14:37:27.93 3.0 undecidable manual Pg 2.36 0
IV.CSP1.EHZ. 2023-02-27T14:37:26.49 0.6 undecidable manual S 26 23.2545 95 0.15 48
7F.SIB2.EHE. 2023-02-27T14:37:25.01 0.6 undecidable manual S 94 18.3705 100 -0.03 50
IV.MMO1.EHZ. 2023-02-27T14:37:25.54 0.6 undecidable manual S 91 20.1687 98 0.02 49
7F.SIB1.EHE. 2023-02-27T14:37:24.26 0.6 undecidable manual S 93 15.5733 106 -0.06 50
IV.CESI.HHZ. 2023-02-27T14:37:24.78 0.6 undecidable manual S 309 18.0708 100 -0.17 48
IV.FDMO.HHZ. 2023-02-27T14:37:24.05 0.6 undecidable manual S 3 14.7741 108 -0.06 49
7F.SIB3.EHE. 2023-02-27T14:37:24.39 0.6 undecidable manual S 101 15.873 105 0 50
IT.MTCL.HGE. 2023-02-27T14:37:23.36 0.6 undecidable manual S 328 11.877 119 -0.04 50
IV.GAVE.EHZ. 2023-02-27T14:37:23.26 0.1 undecidable manual P 213 27.8499 94 -0.1 96
IV.CESI.HHZ. 2023-02-27T14:37:22.11 0.1 negative manual P 309 18.0708 100 0.24 95
IV.MMO1.EHZ. 2023-02-27T14:37:22.29 0.6 negative manual P 91 20.1687 98 0.09 49
IV.CSP1.EHZ. 2023-02-27T14:37:22.81 1.0 undecidable manual P 26 23.2545 95 0.14 24
IV.NRCA.HHZ. 2023-02-27T14:37:22.44 0.6 undecidable manual S 159 8.2806 134 -0.18 49
IV.FEMA.HNE. 2023-02-27T14:37:22.38 0.6 undecidable manual S 341 6.8931 141 0 51
IV.MC2.EHZ. 2023-02-27T14:37:22.93 0.6 undecidable manual S 84 9.0798 131 0.16 49
7F.SIB2.EHE. 2023-02-27T14:37:21.76 0.1 undecidable manual P 94 18.3705 100 -0.16 96
IV.FDMO.HHZ. 2023-02-27T14:37:21.50 1.0 undecidable manual P 3 14.7741 108 0.12 25
7F.SIB3.EHE. 2023-02-27T14:37:21.33 0.1 undecidable manual P 101 15.873 105 -0.22 96
IV.VAGA.HHZ. 2023-02-27T14:37:21.74 3.0 positive manual P 5.34 0
IV.GATE.HHZ. 2023-02-27T14:37:21.22 3.0 positive manual P -2.23 0
7F.SIB1.EHE. 2023-02-27T14:37:21.63 0.1 undecidable manual P 93 15.5733 106 0.13 97
IV.NRCA.HHZ. 2023-02-27T14:37:20.65 0.1 negative manual P 159 8.2806 134 0.12 98
IV.FEMA.HNE. 2023-02-27T14:37:20.32 0.1 undecidable manual P 341 6.8931 141 -0.06 100
IV.MC2.EHZ. 2023-02-27T14:37:20.82 1.0 undecidable manual P 84 9.0798 131 0.21 24
IT.MTCL.HGE. 2023-02-27T14:37:20.87 0.1 undecidable manual P 328 11.877 119 -0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.4 0.0003145 0.1 AML other m 2023-02-27T14:37:22.49
IV.NRCA.HHE. ML:1.2 0.00017999999999999998 0.12 AML other m 2023-02-27T14:37:22.52
IV.MC2.EHE. ML:0.8 0.00007518709999999998 1.44 AML other m 2023-02-27T14:37:22.97
IV.MC2.EHN. ML:1.1 0.0001508645 0.224 AML other m 2023-02-27T14:37:23.31
IV.CESI.HHE. ML:0.3 0.000015212091499999998 0.7232 AML other m 2023-02-27T14:37:24.71
IV.CESI.HHN. ML:1.1 0.00010734164999999999 0.1024 AML other m 2023-02-27T14:37:25.38
IV.MMO1.EHE. ML:1.1 0.000085307335 1.1968 AML other m 2023-02-27T14:37:23.65
IV.MMO1.EHN. ML:1.2 0.00011138467500000002 2.784 AML other m 2023-02-27T14:37:25.67
IV.CSP1.EHE. ML:0.9 0.000045546465 0.3776 AML other m 2023-02-27T14:37:26.50
IV.CSP1.EHN. ML:0.9 0.00004668856249999999 1.0176 AML other m 2023-02-27T14:37:26.76
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