Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 23-08-2022 and time 18:22:03 (UTC) in region 1 km E Borgo Velino (RI)

A magnitude ML 1.4 earthquake occured in region: 1 km E Borgo Velino (RI), on

  • 23-08-2022 18:22:03 (UTC)
  • 23-08-2022 20:22:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4020, 13.0730 at 9 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
Borgo Velino RI 1 972 972
Antrodoco RI 2 2588 3560
Castel Sant'Angelo RI 4 1308 4868
Micigliano RI 6 127 4995
Cittaducale RI 10 6828 11823
Concerviano RI 11 291 12114
Petrella Salto RI 12 1197 13311
Borbona RI 13 617 13928
Posta RI 14 694 14622
Cagnano Amiterno AQ 14 1369 15991
Scoppito AQ 16 3727 19718
Cantalice RI 16 2755 22473
Fiamignano RI 16 1413 23886
Longone Sabino RI 17 597 24483
Rieti RI 17 47698 72181
Belmonte in Sabina RI 17 636 72817
Barete AQ 18 737 73554
Varco Sabino RI 19 187 73741
Rocca Sinibalda RI 19 815 74556
Pizzoli AQ 19 4326 78882
Poggio Bustone RI 19 2055 80937
Marcetelli RI 20 89 81026
Montereale AQ 20 2581 83607
Leonessa RI 20 2435 86042

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of L'Aquila (69753 inhabitants)
39 Km E of Terni (111501 inhabitants)
53 Km NE of Guidonia Montecelio (88673 inhabitants)
54 Km NE of Tivoli (56533 inhabitants)
59 Km W of Teramo (54892 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
75 Km NE of Roma (2864731 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
83 Km N of Velletri (53303 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
90 Km W of Chieti (51815 inhabitants)
94 Km W of Pescara (121014 inhabitants)
94 Km NE of Pomezia (62966 inhabitants)
96 Km SE of Perugia (166134 inhabitants)
96 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
Bulletin
Rev1000 		ML 1.4 2022-08-23
18:22:03		 42.4023 13.0732 9 2023-01-31
19:03:34		 Bollettino Sismico Italiano INGV 108889631
Reviewed
Rev100 		ML 1.6 2022-08-23
18:22:03		 42.3965 13.0713 9 2022-08-23
18:33:24		 Sala Sismica INGV-Roma 108871441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-23 18:22:03 ± 0.07
Latitude 42.4023 ± 0.0036
Longitude 13.0732 ± 0.0049
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 108889631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 395
Semi-minor axis of confidence ellipse (meter) 308
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.13850
Epicentral distance of station farthest from the epicenter (degree) 0.65021
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 108871441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-23 18:33:24

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 108889631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-11 14:30:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTRA.EHE. 2022-08-23T18:22:19.47 0.6 undecidable manual S 34 47.3193 50 0.05 47
IV.MF5.EHZ. 2022-08-23T18:22:17.02 0.1 undecidable manual P 26 72.1722 50 0.38 84
IV.GIGS.HHZ. 2022-08-23T18:22:17.74 0.6 undecidable manual S 82 41.3253 50 -0.06 48
IV.FDMO.HHZ. 2022-08-23T18:22:16.08 0.3 undecidable manual P 1 70.374 50 -0.28 65
IV.GAVE.EHZ. 2022-08-23T18:22:16.57 0.6 undecidable manual S 336 35.3424 50 0.36 45
IV.CAMP.HHZ. 2022-08-23T18:22:15.12 0.6 undecidable manual S 62 31.2465 106 0.08 48
IV.ARRO.EHZ. 2022-08-23T18:22:15.56 0.6 undecidable manual S 308 31.8459 105 0.29 46
IV.MOMA.HHN. 2022-08-23T18:22:14.77 0.3 undecidable manual P 317 60.5949 50 -0.08 69
IV.TERO.HHN. 2022-08-23T18:22:13.43 0.3 undecidable manual P 60 49.8168 50 0.23 68
IV.MTCE.HHZ. 2022-08-23T18:22:13.31 0.6 undecidable manual P 213 50.1165 50 0.07 47
IV.PTQR.HHZ. 2022-08-23T18:22:13.74 0.3 undecidable manual P 147 50.0166 50 0.51 64
MN.AQU.HNZ. 2022-08-23T18:22:13.92 0.6 undecidable manual S 101 27.75 107 0.04 49
IV.MTRA.EHE. 2022-08-23T18:22:12.67 0.3 undecidable manual P 34 47.3193 50 -0.14 70
IV.NRCA.HHZ. 2022-08-23T18:22:12.56 0.3 undecidable manual P 4 47.9187 50 -0.35 67
IV.GIGS.HHZ. 2022-08-23T18:22:11.47 0.3 undecidable manual P 82 41.3253 50 -0.42 66
IV.RM33.EHZ. 2022-08-23T18:22:10.35 0.6 undecidable manual S 44 16.5723 118 0.07 50
IV.GAVE.EHZ. 2022-08-23T18:22:10.76 0.1 positive manual P 336 35.3424 50 -0.2 94
IV.CAMP.HHZ. 2022-08-23T18:22:10.16 0.3 undecidable manual P 62 31.2465 106 -0.13 72
IV.ARRO.EHZ. 2022-08-23T18:22:10.31 0.1 undecidable manual P 308 31.8459 105 -0.11 96
MN.AQU.HNZ. 2022-08-23T18:22:09.53 0.3 undecidable manual P 101 27.75 107 -0.09 73
IV.FIAM.HHZ. 2022-08-23T18:22:09.84 0.6 undecidable manual S 166 15.3735 120 -0.07 50
IV.RM33.EHZ. 2022-08-23T18:22:07.69 0.1 undecidable manual P 44 16.5723 118 0.14 98
IV.FIAM.HHZ. 2022-08-23T18:22:07.27 0.1 undecidable manual P 166 15.3735 120 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.8 0.00055224405 0.64 AML other m 2022-08-23T18:22:10.30
IV.FIAM.HNN. ML:1.8 0.00054904615 0.64 AML other m 2022-08-23T18:22:10.31
IV.FIAM.HHE. ML:1.6 0.00037958990000000004 0.5632 AML other m 2022-08-23T18:22:10.36
IV.FIAM.HNE. ML:1.6 0.00035584935 0.576 AML other m 2022-08-23T18:22:10.09
IV.RM33.EHN. ML:1.6 0.0003595 1.5 AML other m 2022-08-23T18:22:10.08
IV.RM33.HNE. ML:1.6 0.0003449219 0.3328 AML other m 2022-08-23T18:22:11.26
IV.RM33.EHE. ML:1.6 0.0003605 0.32 AML other m 2022-08-23T18:22:11.43
IV.RM33.HNN. ML:1.7 0.00042076435 0.5376 AML other m 2022-08-23T18:22:11.07
IV.ARRO.EHE. ML:1.0 0.000042568815 1.2288 AML other m 2022-08-23T18:22:15.69
IV.ARRO.EHN. ML:0.9 0.00003376437 0.5376 AML other m 2022-08-23T18:22:16.81
IV.NRCA.HHN. ML:1.1 0.000034841085 0.1408 AML other m 2022-08-23T18:22:20.70
IV.NRCA.HHE. ML:1.4 0.00007122422000000001 0.6016 AML other m 2022-08-23T18:22:21.09
IV.FDMO.HHE. ML:0.8 0.000012100924499999998 0.1664 AML other m 2022-08-23T18:22:27.56
IV.FDMO.HHN. ML:1.0 0.00001430831 0.6784 AML other m 2022-08-23T18:22:27.55
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