Earthquake with magnitude of ML 1.0 on date 27-02-2023 and time 20:16:18 (UTC) in region 3 km S Castelsantangelo sul Nera (MC)

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

  • 27-02-2023 20:16:18 (UTC)
  • 27-02-2023 21:16:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8730, 13.1620 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.

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
Ussita MC 8 444 725
Visso MC 9 1107 1832
Preci PG 10 724 2556
Norcia PG 11 4957 7513
Montemonaco AP 14 604 8117
Montegallo AP 14 523 8640
Bolognola MC 15 142 8782
Arquata del Tronto AP 16 1178 9960
Montefortino FM 17 1178 11138
Acquacanina MC 18 121 11259
Fiastra MC 18 559 11818
Monte Cavallo MC 19 145 11963
Sellano PG 19 1079 13042
Fiordimonte MC 19 202 13244
Amandola FM 20 3629 16873

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
50 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
97 Km W of Pescara (121014 inhabitants)
100 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 1.0 2023-02-27
20:16:18
42.8733 13.1615 10 2023-02-27
20:21:56
Sala Sismica INGV-Roma 114865051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-27 20:16:18 ± 0.11
Latitude 42.8733 ± 0.0054
Longitude 13.1615 ± 0.0061
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 114865051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 646
Semi-minor axis of confidence ellipse (meter) 385
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 0.24641
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
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 114865051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-27 20:21:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2023-02-27T20:16:29.07 0.3 undecidable manual S 62 27.3504 50 0.31 68
IV.CESI.HHZ. 2023-02-27T20:16:28.16 0.6 undecidable manual S 305 25.4523 111 -0.07 48
IV.CSP1.EHZ. 2023-02-27T20:16:27.82 0.6 undecidable manual S 8 24.4533 112 -0.09 48
IV.FDMO.HHZ. 2023-02-27T20:16:25.99 0.6 undecidable manual S 342 19.0698 117 -0.22 47
IV.CESI.HHZ. 2023-02-27T20:16:24.12 0.6 positive manual P 305 25.4523 111 -0.11 48
IV.MF5.EHZ. 2023-02-27T20:16:24.75 1.0 positive manual P 62 27.3504 50 0.22 23
IV.MMO1.EHZ. 2023-02-27T20:16:24.24 0.6 undecidable manual S 78 13.7751 126 -0.39 46
7F.SIB2.EHZ. 2023-02-27T20:16:23.83 0.6 undecidable manual S 80 11.7771 130 -0.25 48
7F.SIB1.EHZ. 2023-02-27T20:16:23.55 0.6 undecidable manual S 75 9.0798 137 0.12 49
IV.FDMO.HHZ. 2023-02-27T20:16:23.00 0.1 undecidable manual P 342 19.0698 117 -0.06 98
7F.SIB3.EHZ. 2023-02-27T20:16:23.08 0.6 undecidable manual S 89 8.7801 138 -0.28 48
IV.MC2.EHZ. 2023-02-27T20:16:23.21 0.3 undecidable manual S 28 4.7952 154 0.64 66
IV.CSP1.EHZ. 2023-02-27T20:16:23.87 1.0 positive manual P 8 24.4533 112 -0.17 24
IV.MMO1.EHZ. 2023-02-27T20:16:22.11 0.3 negative manual P 78 13.7751 126 -0.04 75
IV.NRCA.HHZ. 2023-02-27T20:16:22.78 0.6 undecidable manual S 221 5.8941 149 0.03 51
7F.SIB3.EHZ. 2023-02-27T20:16:21.36 0.1 undecidable manual P 89 8.7801 138 -0.05 100
IV.MC2.EHZ. 2023-02-27T20:16:21.24 1.0 undecidable manual P 28 4.7952 154 0.29 24
7F.SIB2.EHZ. 2023-02-27T20:16:21.66 0.1 undecidable manual P 80 11.7771 130 -0.17 97
7F.SIB1.EHZ. 2023-02-27T20:16:21.60 0.1 undecidable manual P 75 9.0798 137 0.15 98
IV.NRCA.HHZ. 2023-02-27T20:16:21.20 1.0 undecidable manual P 221 5.8941 149 0.14 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.000251 0.18 AML other m 2023-02-27T20:16:22.92
IV.NRCA.HHE. ML:1.3 0.0003025 0.16 AML other m 2023-02-27T20:16:22.92
IV.MC2.EHE. ML:0.8 0.000096744085 0.32 AML other m 2023-02-27T20:16:25.80
IV.MC2.EHN. ML:0.9 0.0001295926 0.2432 AML other m 2023-02-27T20:16:24.48
IV.FDMO.HHE. ML:0.7 0.000033894675 1.1008 AML other m 2023-02-27T20:16:25.31
IV.FDMO.HHN. ML:0.8 0.000042627959999999996 2.5984 AML other m 2023-02-27T20:16:27.07
IV.CSP1.EHE. ML:1.5 0.0001776269 1.5744 AML other m 2023-02-27T20:16:31.20
IV.CSP1.EHN. ML:1.3 0.0001235092 1.9328 AML other m 2023-02-27T20:16:26.37
IV.CESI.HHE. ML:1.1 0.00008129988 2.1248 AML other m 2023-02-27T20:16:27.47
IV.CESI.HHN. ML:0.8 0.000040398774999999995 0.1792 AML other m 2023-02-27T20:16:28.38
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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