Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 06-02-2023 and time 15:53:36 (UTC) in region 3 km W Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km W Castelsantangelo sul Nera (MC), on

  • 06-02-2023 15:53:36 (UTC)
  • 06-02-2023 16:53:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8880, 13.1140 at 11 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
Castelsantangelo sul Nera MC 3 281 281
Visso MC 5 1107 1388
Preci PG 6 724 2112
Ussita MC 7 444 2556
Norcia PG 11 4957 7513
Monte Cavallo MC 15 145 7658
Bolognola MC 15 142 7800
Sellano PG 15 1079 8879
Acquacanina MC 17 121 9000
Fiordimonte MC 17 202 9202
Fiastra MC 17 559 9761
Montemonaco AP 18 604 10365
Cerreto di Spoleto PG 18 1075 11440
Pieve Torina MC 18 1458 12898
Montegallo AP 19 523 13421
Montefortino FM 20 1178 14599
Pievebovigliana MC 20 866 15465
Arquata del Tronto AP 20 1178 16643

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
53 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
64 Km E of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Viterbo (67173 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 2023-02-06
15:53:36		 42.8885 13.1142 11 2023-02-06
16:03:53		 Sala Sismica INGV-Roma 114166231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-06 15:53:36 ± 0.04
Latitude 42.8885 ± 0.0027
Longitude 13.1142 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114166231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29048
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 114166231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-06 16:03:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-02-06T15:53:45.03 0.3 undecidable manual S 18 23.754 50 0.09 75
IV.CESI.HHZ. 2023-02-06T15:53:44.17 0.3 undecidable manual S 307 21.3675 50 -0.14 74
IV.MMO1.EHZ. 2023-02-06T15:53:43.04 0.1 undecidable manual S 86 17.3715 122 -0.13 100
IV.LNSS.HNE. 2023-02-06T15:53:42.45 0.3 undecidable manual P 191 32.2455 50 -0.06 74
7F.SIB2.EHZ. 2023-02-06T15:53:42.41 0.3 undecidable manual S 89 15.3735 125 -0.2 74
IV.FDMO.HHZ. 2023-02-06T15:53:42.72 0.3 undecidable manual S 352 16.5723 123 -0.22 74
IV.PF6.EHZ. 2023-02-06T15:53:41.81 0.3 undecidable manual P 13 28.4493 50 -0.12 74
IV.FEMA.HNZ. 2023-02-06T15:53:41.08 0.3 undecidable manual S 327 9.6792 138 -0.04 77
IV.MTRA.EHZ. 2023-02-06T15:53:41.79 0.3 undecidable manual P 122 27.2505 50 0.05 75
7F.SIB3.EHZ. 2023-02-06T15:53:41.65 0.3 undecidable manual S 97 12.7761 130 -0.23 74
IV.GUMA.HHZ. 2023-02-06T15:53:41.93 3.0 positive manual P 0.15 0
IV.CSP1.EHZ. 2023-02-06T15:53:41.19 0.3 undecidable manual P 18 23.754 50 -0.01 76
IV.MML1.HNZ. 2023-02-06T15:53:41.88 0.3 undecidable manual P 335 27.5502 50 0.1 74
7F.SIB1.EHZ. 2023-02-06T15:53:41.96 0.3 undecidable manual S 87 12.6762 130 0.1 76
IV.NRCA.HHZ. 2023-02-06T15:53:40.19 0.3 undecidable manual S 180 6.0939 151 -0.19 75
IV.MMO1.EHZ. 2023-02-06T15:53:40.22 0.3 undecidable manual P 86 17.3715 122 0.05 76
IV.CESI.HHZ. 2023-02-06T15:53:40.85 0.3 undecidable manual P 307 21.3675 50 0.02 76
IV.MC2.EHZ. 2023-02-06T15:53:40.72 0.3 undecidable manual S 67 6.5934 149 0.25 74
IV.FDMO.HHZ. 2023-02-06T15:53:40.03 0.3 undecidable manual P 352 16.5723 123 -0.01 77
7F.SIB1.EHZ. 2023-02-06T15:53:39.66 0.3 undecidable manual P 87 12.6762 130 0.24 74
7F.SIB2.EHZ. 2023-02-06T15:53:39.92 0.3 undecidable manual P 89 15.3735 125 0.07 76
IV.FEMA.HNZ. 2023-02-06T15:53:39.16 0.3 undecidable manual P 327 9.6792 138 0.17 75
IT.MTCL.HGZ. 2023-02-06T15:53:39.77 0.3 undecidable manual P 321 14.9739 126 -0.01 77
7F.SIB3.EHZ. 2023-02-06T15:53:39.34 0.3 undecidable manual P 97 12.7761 130 -0.09 76
IV.NRCA.HHZ. 2023-02-06T15:53:38.70 0.3 undecidable manual P 180 6.0939 151 0.13 76
IV.MC2.EHZ. 2023-02-06T15:53:38.88 0.3 undecidable manual P 67 6.5934 149 0.26 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.7 0.0007790000000000001 0.14 AML other m 2023-02-06T15:53:40.35
IV.NRCA.HHE. ML:1.5 0.000516 0.12 AML other m 2023-02-06T15:53:40.37
IV.MMO1.EHE. ML:1.2 0.000129 0.52 AML other m 2023-02-06T15:53:43.32
IV.MMO1.EHN. ML:1.0 0.00008834999999999999 1.1 AML other m 2023-02-06T15:53:43.63
IV.NRCA.HNE. ML:1.5 0.00047032735 0.0896 AML other m 2023-02-06T15:53:40.38
IV.NRCA.HNN. ML:1.7 0.00079161975 0.128 AML other m 2023-02-06T15:53:40.29
IV.FDMO.HHE. ML:0.5 0.000031463409999999995 0.1664 AML other m 2023-02-06T15:53:43.11
IV.FDMO.HHN. ML:0.5 0.00003117086 0.1408 AML other m 2023-02-06T15:53:43.68
IV.CESI.HHE. ML:0.8 0.000040495185000000004 0.1152 AML other m 2023-02-06T15:53:44.24
IV.CESI.HHN. ML:1.0 0.000067837455 0.0896 AML other m 2023-02-06T15:53:44.51
IV.CSP1.EHE. ML:0.9 0.00004673832000000001 0.1664 AML other m 2023-02-06T15:53:45.57
IV.CSP1.EHN. ML:1.0 0.000065865305 0.1792 AML other m 2023-02-06T15:53:46.04
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