Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 07-08-2023 and time 13:00:04 (Italy) in region 1 km NW Borgo Velino (RI)

A magnitude ML 2.1 earthquake occured in region: 1 km NW Borgo Velino (RI), on

  • 07-08-2023 11:00:04 (UTC)
  • 07-08-2023 13:00:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4160, 13.0480 at 13 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
Borgo Velino RI 1 972 972
Castel Sant'Angelo RI 3 1308 2280
Antrodoco RI 3 2588 4868
Micigliano RI 4 127 4995
Cittaducale RI 9 6828 11823
Concerviano RI 11 291 12114
Posta RI 13 694 12808
Borbona RI 13 617 13425
Cantalice RI 13 2755 16180
Petrella Salto RI 14 1197 17377
Rieti RI 15 47698 65075
Cagnano Amiterno AQ 15 1369 66444
Poggio Bustone RI 16 2055 68499
Belmonte in Sabina RI 17 636 69135
Longone Sabino RI 17 597 69732
Leonessa RI 18 2435 72167
Scoppito AQ 18 3727 75894
Fiamignano RI 18 1413 77307
Rocca Sinibalda RI 19 815 78122
Rivodutri RI 19 1253 79375
Varco Sabino RI 20 187 79562
Barete AQ 20 737 80299

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of L'Aquila (69753 inhabitants)
37 Km E of Terni (111501 inhabitants)
53 Km NE of Guidonia Montecelio (88673 inhabitants)
54 Km NE of Tivoli (56533 inhabitants)
60 Km W of Teramo (54892 inhabitants)
66 Km SE of Foligno (57155 inhabitants)
74 Km NE of Roma (2864731 inhabitants)
77 Km E of Viterbo (67173 inhabitants)
84 Km N of Velletri (53303 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
92 Km W of Chieti (51815 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
94 Km NE of Pomezia (62966 inhabitants)
96 Km W of Pescara (121014 inhabitants)
97 Km NE of Aprilia (73446 inhabitants)
98 Km NE of Fiumicino (78395 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 2.1 2023-08-07
11:00:04		 42.4157 13.0478 13 2023-08-07
11:16:55		 Sala Sismica INGV-Roma 119922481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-07 11:00:04 ± 0.05
Latitude 42.4157 ± 0.0027
Longitude 13.0478 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119922481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52341
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 119922481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-07 11:16:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2023-08-07T11:00:33.44 3.0 undecidable manual S 0 0
IV.CSP1.EHZ. 2023-08-07T11:00:28.57 3.0 undecidable manual S -0.08 0
IV.MOMA.HHZ. 2023-08-07T11:00:23.08 0.3 undecidable manual S 318 58.0974 92 0.52 62
IV.MGAB.HHZ. 2023-08-07T11:00:21.15 3.0 undecidable manual P 0.1 0
IV.PTQR.HHZ. 2023-08-07T11:00:20.76 0.3 undecidable manual S 146 52.4031 92 -0.27 67
IV.MTCE.HHZ. 2023-08-07T11:00:20.35 0.3 undecidable manual S 210 50.3163 93 -0.12 70
IV.ASSB.HHZ. 2023-08-07T11:00:18.01 3.0 positive manual P -0.13 0
IV.CSP1.EHZ. 2023-08-07T11:00:17.75 3.0 undecidable manual P -0.14 0
IV.T0110.HHZ. 2023-08-07T11:00:16.07 3.0 positive manual P 0.46 0
IV.SMA1.EHZ. 2023-08-07T11:00:16.16 0.3 undecidable manual S 44 33.4443 95 0.17 72
IV.MF5.EHZ. 2023-08-07T11:00:16.80 3.0 negative manual P -0.29 0
IV.CAMP.HHZ. 2023-08-07T11:00:15.67 0.3 undecidable manual S 66 32.4453 95 -0.03 73
IV.FAGN.HHZ. 2023-08-07T11:00:15.10 3.0 negative manual P 2.14 0
IV.MOMA.HHZ. 2023-08-07T11:00:15.16 0.3 undecidable manual P 318 58.0974 92 0.2 67
IV.GAVE.EHZ. 2023-08-07T11:00:15.53 0.3 undecidable manual S 338 33.1446 95 -0.37 68
IV.ARRO.EHZ. 2023-08-07T11:00:14.76 0.3 undecidable manual S 308 29.3484 96 -0.13 73
IV.CERT.HHZ. 2023-08-07T11:00:14.74 0.3 undecidable manual P 186 52.0035 92 0.72 59
IV.MTCE.HHZ. 2023-08-07T11:00:13.80 0.1 undecidable manual P 210 50.3163 93 0.05 94
IV.TERO.HHZ. 2023-08-07T11:00:13.44 3.0 positive manual P -0.13 0
IV.PTQR.HHZ. 2023-08-07T11:00:13.69 0.1 undecidable manual P 146 52.4031 92 -0.39 88
IV.NRCA.HHZ. 2023-08-07T11:00:12.91 0.1 undecidable manual P 7 46.7199 93 -0.29 91
IV.GIGS.HHZ. 2023-08-07T11:00:12.45 3.0 undecidable manual P 0.15 0
IV.LNSS.HHZ. 2023-08-07T11:00:12.60 0.3 undecidable manual S 358 20.7681 102 -0.03 75
IV.RM33.EHZ. 2023-08-07T11:00:11.75 0.3 undecidable manual S 53 17.1717 108 0.07 76
IV.FIAM.HHZ. 2023-08-07T11:00:11.72 0.3 undecidable manual S 161 17.3715 107 -0.01 75
IV.SMA1.EHZ. 2023-08-07T11:00:11.21 0.1 undecidable manual P 44 33.4443 95 0.05 98
IV.GAVE.EHZ. 2023-08-07T11:00:11.14 0.1 undecidable manual P 338 33.1446 95 0.02 98
MN.AQU.HHE. 2023-08-07T11:00:10.55 0.1 undecidable manual P 103 30.0477 96 -0.09 97
IV.ARRO.EHZ. 2023-08-07T11:00:10.51 0.1 undecidable manual P 308 29.3484 96 -0.02 99
IT.MMP1.HGE. 2023-08-07T11:00:10.75 0.1 undecidable manual P 233 30.747 95 0.01 98
IV.CAMP.HHZ. 2023-08-07T11:00:10.91 0.1 undecidable manual P 66 32.4453 95 -0.09 96
IV.LNSS.HHZ. 2023-08-07T11:00:09.26 0.1 undecidable manual P 358 20.7681 102 0.04 100
IV.RM33.EHZ. 2023-08-07T11:00:08.82 0.1 undecidable manual P 53 17.1717 108 0.14 99
IV.FIAM.HHZ. 2023-08-07T11:00:08.80 0.1 undecidable manual P 161 17.3715 107 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:2.4 0.0018599999999999999 0.16 AML other m 2023-08-07T11:00:11.95
IV.FIAM.HNN. ML:2.3 0.001685 0.16 AML other m 2023-08-07T11:00:11.95
IV.RM33.HNN. ML:2.5 0.002505 0.18 AML other m 2023-08-07T11:00:12.04
IV.RM33.EHN. ML:2.5 0.0025099999999999996 1.72 AML other m 2023-08-07T11:00:12.99
IV.FIAM.HHE. ML:2.0 0.000868 0.56 AML other m 2023-08-07T11:00:12.16
IV.RM33.EHE. ML:2.3 0.0017399999999999998 0.66 AML other m 2023-08-07T11:00:12.57
IV.RM33.HNE. ML:2.3 0.0017250000000000002 0.66 AML other m 2023-08-07T11:00:12.57
IV.LNSS.HHE. ML:2.4 0.001585 1.5 AML other m 2023-08-07T11:00:13.76
IV.LNSS.HNE. ML:2.3 0.0014930000000000002 1.5 AML other m 2023-08-07T11:00:13.76
IV.FIAM.HNE. ML:2.2 0.001245 0.26 AML other m 2023-08-07T11:00:13.14
IV.LNSS.HHN. ML:2.3 0.0012549999999999998 0.22 AML other m 2023-08-07T11:00:14.83
IV.LNSS.HNN. ML:2.2 0.001155 0.22 AML other m 2023-08-07T11:00:14.83
IV.ARRO.EHN. ML:2.2 0.0007830000000000001 1.38 AML other m 2023-08-07T11:00:14.28
IV.ARRO.EHE. ML:2.2 0.0007335 1.8 AML other m 2023-08-07T11:00:15.07
IV.GAVE.EHN. ML:2.2 0.0007190000000000001 0.32 AML other m 2023-08-07T11:00:16.35
IV.CAMP.HHN. ML:1.7 0.0001975 0.72 AML other m 2023-08-07T11:00:16.03
IV.SMA1.EHE. ML:2.4 0.001009 0.58 AML other m 2023-08-07T11:00:16.62
IV.SMA1.EHN. ML:2.3 0.0008665000000000001 0.36 AML other m 2023-08-07T11:00:16.59
IV.GAVE.EHE. ML:2.1 0.0005735 0.18 AML other m 2023-08-07T11:00:16.74
IV.CAMP.HHE. ML:1.6 0.000183 0.64 AML other m 2023-08-07T11:00:19.42
IV.NRCA.HHE. ML:2.2 0.00044750000000000004 0.1 AML other m 2023-08-07T11:00:20.45
IV.MTCE.HHN. ML:1.6 0.0000887 0.48 AML other m 2023-08-07T11:00:20.81
IV.NRCA.HHN. ML:2.0 0.00026900000000000003 0.12 AML other m 2023-08-07T11:00:20.85
IV.MTCE.HHE. ML:1.6 0.00011355000000000001 0.66 AML other m 2023-08-07T11:00:22.83
IV.TERO.HHN. ML:1.9 0.0002185 0.42 AML other m 2023-08-07T11:00:23.02
IV.TERO.HHE. ML:1.8 0.0001535 0.42 AML other m 2023-08-07T11:00:23.76
IV.CERT.HHN. ML:1.5 0.00008275 0.38 AML other m 2023-08-07T11:00:27.21
IV.CERT.HHE. ML:1.3 0.000044999999999999996 1.34 AML other m 2023-08-07T11:00:27.77
IV.CSP1.EHE. ML:2.0 0.0001555 0.42 AML other m 2023-08-07T11:00:29.12
IV.ASSB.HHE. ML:1.9 0.0001095 0.34 AML other m 2023-08-07T11:00:29.34
IV.ASSB.HHN. ML:1.9 0.00010635 0.26 AML other m 2023-08-07T11:00:30.33
IV.CSP1.EHN. ML:2.1 0.0001795 1.72 AML other m 2023-08-07T11:00:30.95
IV.ATCC.EHE. ML:2.0 0.00011399999999999999 1.32 AML other m 2023-08-07T11:00:34.04
IV.T0110.HHN. ML:1.9 0.000146 1.52 AML other m 2023-08-07T11:00:35.85
IV.T0110.HHE. ML:1.8 0.0001255 0.3 AML other m 2023-08-07T11:00:35.22
IV.MGAB.HHN. ML:2.0 0.00011249999999999998 0.86 AML other m 2023-08-07T11:00:36.72
IV.MGAB.HHE. ML:2.2 0.00016849999999999998 0.58 AML other m 2023-08-07T11:00:38.62
IV.ATCC.EHN. ML:2.0 0.0001225 0.38 AML other m 2023-08-07T11:00:38.15
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