Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 09-02-2023 and time 21:18:51 (UTC) in region 4 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 0.6 earthquake occured in region: 4 km NE Castelsantangelo sul Nera (MC), on

  • 09-02-2023 21:18:51 (UTC)
  • 09-02-2023 22:18:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9210, 13.1860 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 4 281 281
Ussita MC 5 444 725
Visso MC 8 1107 1832
Bolognola MC 9 142 1974
Montemonaco AP 12 604 2578
Acquacanina MC 12 121 2699
Preci PG 13 724 3423
Montefortino FM 13 1178 4601
Fiastra MC 13 559 5160
Montegallo AP 15 523 5683
Fiordimonte MC 15 202 5885
Amandola FM 16 3629 9514
Norcia PG 16 4957 14471
Sarnano MC 16 3264 17735
Monte Cavallo MC 17 145 17880
Pieve Torina MC 18 1458 19338
Pievebovigliana MC 18 866 20204
Arquata del Tronto AP 19 1178 21382
Comunanza AP 19 3166 24548

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
98 Km NW of Pescara (121014 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 0.6 2023-02-09
21:18:51		 42.9208 13.1857 11 2023-02-09
21:24:58		 Sala Sismica INGV-Roma 114307571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-09 21:18:51 ± 0.1
Latitude 42.9208 ± 0.0054
Longitude 13.1857 ± 0.0074
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114307571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 526
Semi-minor axis of confidence ellipse (meter) 483
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 0.22213
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 114307571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-09 21:24:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2023-02-09T21:19:00.54 0.3 undecidable manual S 292 24.6531 50 0.07 73
IV.CSP1.EHZ. 2023-02-09T21:18:59.08 0.3 undecidable manual S 5 19.0698 50 0.1 72
IV.FDMO.HHZ. 2023-02-09T21:18:57.60 0.1 undecidable manual S 328 15.0738 126 -0.25 96
IV.MMO1.EHZ. 2023-02-09T21:18:56.92 0.1 undecidable manual S 102 11.6772 133 -0.01 100
IV.CESI.HHZ. 2023-02-09T21:18:56.79 0.3 undecidable manual P 292 24.6531 50 0.15 72
IV.NRCA.HHZ. 2023-02-09T21:18:56.60 0.3 undecidable manual S 211 11.2776 134 -0.23 72
IV.CSP1.EHZ. 2023-02-09T21:18:55.98 0.3 undecidable manual P 5 19.0698 50 0.21 71
IV.FDMO.HHZ. 2023-02-09T21:18:55.21 0.3 undecidable manual P 328 15.0738 126 0.09 73
IV.MF5.EHZ. 2023-02-09T21:18:55.96 0.3 undecidable manual P 71 23.4543 50 -0.49 65
IV.MMO1.EHZ. 2023-02-09T21:18:54.82 0.1 undecidable manual P 102 11.6772 133 0.23 96
IV.NRCA.HHZ. 2023-02-09T21:18:54.70 0.3 undecidable manual P 211 11.2776 134 0.17 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.8 0.0000748 1.04 AML other m 2023-02-09T21:18:56.14
IV.NRCA.HHE. ML:0.9 0.0000975 0.12 AML other m 2023-02-09T21:18:56.73
IV.MMO1.EHE. ML:0.8 0.00006347679 1.6384 AML other m 2023-02-09T21:18:56.99
IV.MMO1.EHN. ML:0.4 0.000023066179999999998 0.1024 AML other m 2023-02-09T21:18:57.79
IV.FDMO.HHE. ML:0.3 0.000019642235000000002 0.1664 AML other m 2023-02-09T21:18:57.67
IV.FDMO.HHN. ML:0.5 0.00002808479 0.1792 AML other m 2023-02-09T21:18:57.88
IV.CESI.HHE. ML:0.5 0.000019056435 0.192 AML other m 2023-02-09T21:19:00.59
IV.CESI.HHN. ML:0.6 0.00002372113 0.2816 AML other m 2023-02-09T21:19:00.92
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