Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 21-02-2023 and time 14:42:15 (UTC) in region 5 km SE Castel Sant'Angelo (RI)

A magnitude ML 2.0 earthquake occured in region: 5 km SE Castel Sant'Angelo (RI), on

  • 21-02-2023 14:42:15 (UTC)
  • 21-02-2023 15:42:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3490, 13.0520 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Castel Sant'Angelo RI 6 1308 1308
Petrella Salto RI 6 1197 2505
Concerviano RI 6 291 2796
Borgo Velino RI 6 972 3768
Antrodoco RI 8 2588 6356
Cittaducale RI 10 6828 13184
Longone Sabino RI 11 597 13781
Fiamignano RI 11 1413 15194
Micigliano RI 11 127 15321
Varco Sabino RI 12 187 15508
Rocca Sinibalda RI 13 815 16323
Belmonte in Sabina RI 14 636 16959
Marcetelli RI 14 89 17048
Castel di Tora RI 16 288 17336
Rieti RI 17 47698 65034
Scoppito AQ 17 3727 68761
Colle di Tora RI 17 372 69133
Ascrea RI 18 234 69367
Pescorocchiano RI 18 2075 71442
Torricella in Sabina RI 18 1342 72784
Cantalice RI 18 2755 75539
Paganico Sabino RI 18 172 75711
Cagnano Amiterno AQ 19 1369 77080
Collegiove RI 19 213 77293
Borbona RI 19 617 77910
Posta RI 20 694 78604
Poggio San Lorenzo RI 20 589 79193

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of L'Aquila (69753 inhabitants)
41 Km SE of Terni (111501 inhabitants)
47 Km NE of Guidonia Montecelio (88673 inhabitants)
48 Km NE of Tivoli (56533 inhabitants)
64 Km SW of Teramo (54892 inhabitants)
69 Km NE of Roma (2864731 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
77 Km NE of Velletri (53303 inhabitants)
78 Km E of Viterbo (67173 inhabitants)
88 Km NE of Pomezia (62966 inhabitants)
90 Km NE of Aprilia (73446 inhabitants)
92 Km W of Chieti (51815 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Fiumicino (78395 inhabitants)
96 Km W of Pescara (121014 inhabitants)
99 Km N of Latina (125985 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
Bulletin
Rev1000 		ML 2.0 2023-02-21
14:42:15		 42.3492 13.0523 10 2024-03-01
17:18:00		 Bollettino Sismico Italiano INGV 115696831
Reviewed
Rev100 		ML 2.1 2023-02-21
14:42:15		 42.3487 13.0522 9 2023-02-21
14:56:05		 Sala Sismica INGV-Roma 114662611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-21 14:42:15 ± 0.06
Latitude 42.3492 ± 0.0027
Longitude 13.0523 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115696831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 302
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.76622
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 114662611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-21 14:56:05

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 115696831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-24 14:19:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2023-02-21T14:42:55.15 3.0 negative manual Pg 3.17 0
IV.CSNT.HHZ. 2023-02-21T14:42:46.13 3.0 undecidable manual Pn 1.19 0
IV.FDMO.HHZ. 2023-02-21T14:42:38.89 0.3 undecidable manual S 2 76.2681 50 0.18 64
IV.CESI.HHZ. 2023-02-21T14:42:38.31 0.3 undecidable manual S 351 73.7706 50 0.28 63
IV.MOMA.HHZ. 2023-02-21T14:42:35.67 0.3 undecidable manual S 322 63.9915 50 0.25 65
IV.NRCA.HHZ. 2023-02-21T14:42:32.91 0.3 undecidable manual S 5 54.0015 50 0.16 67
IV.CESX.HHE. 2023-02-21T14:42:31.01 0.3 undecidable manual S 307 47.7189 50 -0.07 70
IV.MML1.EHZ. 2023-02-21T14:42:30.26 0.1 undecidable manual P 356 85.0482 50 0 88
IV.PTQR.HHZ. 2023-02-21T14:42:30.44 0.3 undecidable manual S 142 46.2204 50 -0.24 68
IV.MTCE.HHZ. 2023-02-21T14:42:30.16 0.3 undecidable manual S 215 44.2224 50 0 71
IV.GAVE.EHZ. 2023-02-21T14:42:29.00 0.3 undecidable manual S 341 40.2264 50 -0.07 71
IV.CSP1.EHZ. 2023-02-21T14:42:29.81 0.1 undecidable manual P 9 83.3499 50 -0.19 85
IV.SMA1.EHZ. 2023-02-21T14:42:28.89 0.3 undecidable manual S 36 38.8278 50 0.18 69
IV.CESI.HHZ. 2023-02-21T14:42:28.32 0.3 undecidable manual P 351 73.7706 50 -0.2 65
IV.CAMP.HHZ. 2023-02-21T14:42:28.33 0.3 undecidable manual S 55 35.8419 50 0.43 66
IV.FDMO.HHZ. 2023-02-21T14:42:28.64 0.3 undecidable manual P 2 76.2681 50 -0.27 63
IV.MOMA.HHZ. 2023-02-21T14:42:27.12 0.3 undecidable manual P 322 63.9915 50 0.1 67
IV.ARRO.EHZ. 2023-02-21T14:42:27.44 0.6 undecidable manual S 318 34.6431 50 -0.15 47
IT.CSO1.HGZ. 2023-02-21T14:42:26.06 0.3 undecidable manual S 174 27.6501 109 0.38 68
MN.AQU.HNN. 2023-02-21T14:42:26.30 0.6 undecidable manual S 89 28.9488 50 0.24 46
IV.LNSS.HHZ. 2023-02-21T14:42:25.84 0.3 undecidable manual S 358 28.1496 109 0 73
IV.NRCA.HHZ. 2023-02-21T14:42:25.13 0.3 undecidable manual P 5 54.0015 50 -0.34 65
IT.MMP1.HGE. 2023-02-21T14:42:25.57 0.6 undecidable manual S 246 27.2505 109 0.02 49
IV.RM33.EHZ. 2023-02-21T14:42:24.26 0.3 undecidable manual S 37 22.1556 113 0.37 69
IV.CESX.HHE. 2023-02-21T14:42:24.69 0.3 undecidable manual P 307 47.7189 50 0.18 68
IV.SRES.HHN. 2023-02-21T14:42:24.65 0.1 undecidable manual P 255 46.2204 50 0.37 87
IV.PTQR.HHZ. 2023-02-21T14:42:24.17 0.3 undecidable manual P 142 46.2204 50 -0.1 69
IV.MTCE.HHZ. 2023-02-21T14:42:23.76 0.1 undecidable manual P 215 44.2224 50 -0.21 91
IV.FAGN.HHZ. 2023-02-21T14:42:23.80 0.3 undecidable manual P 102 44.5221 50 -0.22 68
IV.CAMP.HHZ. 2023-02-21T14:42:22.66 0.3 undecidable manual P 55 35.8419 50 -0.01 72
IV.GAVE.EHZ. 2023-02-21T14:42:22.94 0.3 undecidable manual P 341 40.2264 50 -0.41 66
IV.SMA1.EHZ. 2023-02-21T14:42:22.98 0.3 undecidable manual P 36 38.8278 50 -0.16 70
IV.ARRO.EHZ. 2023-02-21T14:42:22.09 0.3 undecidable manual P 318 34.6431 50 -0.4 67
MN.AQU.HNN. 2023-02-21T14:42:21.44 0.1 undecidable manual P 89 28.9488 50 -0.17 94
IT.MMP1.HGE. 2023-02-21T14:42:21.60 0.1 undecidable manual P 246 27.2505 109 0.29 93
IV.LNSS.HHZ. 2023-02-21T14:42:21.24 0.1 undecidable manual P 358 28.1496 109 -0.24 93
IT.CSO1.HGZ. 2023-02-21T14:42:21.65 0.1 undecidable manual P 174 27.6501 109 0.26 93
IV.RM33.EHZ. 2023-02-21T14:42:20.36 0.3 undecidable manual P 37 22.1556 113 0 74
IV.FIAM.HHZ. 2023-02-21T14:42:20.29 0.3 undecidable manual S 149 10.4784 132 -0.13 73
IV.FIAM.HHZ. 2023-02-21T14:42:18.36 0.1 positive manual P 149 10.4784 132 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:2.3 0.002755 0.44 AML other m 2023-02-21T14:42:20.99
IV.FIAM.HNN. ML:2.3 0.0025999999999999994 0.44 AML other m 2023-02-21T14:42:20.99
IV.FIAM.HNE. ML:2.4 0.0031500000000000005 0.34 AML other m 2023-02-21T14:42:20.89
IV.FIAM.HHE. ML:2.4 0.0033399999999999997 1.64 AML other m 2023-02-21T14:42:20.89
IV.RM33.HNE. ML:2.3 0.001425 1.68 AML other m 2023-02-21T14:42:25.07
IV.RM33.EHE. ML:2.3 0.0014399999999999999 1.68 AML other m 2023-02-21T14:42:25.07
IV.RM33.HNN. ML:2.2 0.00117 1.1 AML other m 2023-02-21T14:42:26.19
IV.RM33.EHN. ML:2.2 0.00116 1.1 AML other m 2023-02-21T14:42:26.20
IV.LNSS.HHE. ML:2.3 0.0010314999999999999 0.82 AML other m 2023-02-21T14:42:26.10
IV.LNSS.HHN. ML:2.1 0.0006925 0.78 AML other m 2023-02-21T14:42:27.54
IV.ARRO.EHN. ML:1.7 0.00022600000000000002 0.9 AML other m 2023-02-21T14:42:29.55
IV.CAMP.HHN. ML:1.6 0.0001585 0.44 AML other m 2023-02-21T14:42:29.56
IV.SMA1.EHE. ML:2.0 0.000393 0.46 AML other m 2023-02-21T14:42:30.58
IV.GAVE.EHE. ML:2.0 0.00034550000000000005 0.66 AML other m 2023-02-21T14:42:30.51
IV.CAMP.HHE. ML:1.7 0.00020600000000000002 0.96 AML other m 2023-02-21T14:42:31.99
IV.ARRO.EHE. ML:1.7 0.00022749999999999997 0.3 AML other m 2023-02-21T14:42:32.53
IV.FAGN.HHE. ML:2.3 0.0005545 0.4 AML other m 2023-02-21T14:42:33.04
IV.GAVE.EHN. ML:2.1 0.000448 0.38 AML other m 2023-02-21T14:42:33.27
IV.SMA1.EHN. ML:1.9 0.00029949999999999996 1.58 AML other m 2023-02-21T14:42:35.07
IV.NRCA.HHE. ML:1.9 0.00016999999999999999 0.38 AML other m 2023-02-21T14:42:36.52
IV.NRCA.HHN. ML:1.6 0.0000924 0.64 AML other m 2023-02-21T14:42:37.35
IV.PTQR.HHN. ML:1.3 0.0000552 1.2 AML other m 2023-02-21T14:42:38.62
IV.MOMA.HHN. ML:1.9 0.00015815000000000002 0.34 AML other m 2023-02-21T14:42:38.26
IV.FAGN.HHN. ML:2.0 0.00033299999999999996 1.58 AML other m 2023-02-21T14:42:38.17
IV.CESI.HHN. ML:2.1 0.0001875 0.32 AML other m 2023-02-21T14:42:39.31
IV.FDMO.HHE. ML:1.7 0.0000736 0.94 AML other m 2023-02-21T14:42:41.71
IV.MOMA.HHE. ML:1.9 0.00014085 0.56 AML other m 2023-02-21T14:42:42.21
IV.FDMO.HHN. ML:1.6 0.0000614 1 AML other m 2023-02-21T14:42:42.03
IV.CSP1.EHE. ML:2.0 0.00013485 1.62 AML other m 2023-02-21T14:42:43.89
IV.MML1.EHN. ML:1.6 0.0000486 0.3 AML other m 2023-02-21T14:42:44.30
IV.CSP1.EHN. ML:2.0 0.0001385 0.36 AML other m 2023-02-21T14:42:44.39
IV.PTQR.HHE. ML:1.4 0.00006545 0.6 AML other m 2023-02-21T14:42:46.17
IV.MML1.EHE. ML:1.8 0.00008895000000000001 0.86 AML other m 2023-02-21T14:42:46.72
IV.CESI.HHE. ML:1.8 0.00010025000000000001 0.7 AML other m 2023-02-21T14:42:47.36
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
Waveforms Seismic signals in miniseed + resp format Download