Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 19-12-2021 and time 21:02:22 (Italy) in region 4 km NE Concerviano (RI)

A magnitude ML 1.5 earthquake occured in region: 4 km NE Concerviano (RI), on

  • 19-12-2021 20:02:22 (UTC)
  • 19-12-2021 21:02:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3500, 13.0170 at 8 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
Concerviano RI 4 291 291
Castel Sant'Angelo RI 5 1308 1599
Cittaducale RI 7 6828 8427
Borgo Velino RI 7 972 9399
Petrella Salto RI 7 1197 10596
Antrodoco RI 9 2588 13184
Longone Sabino RI 10 597 13781
Belmonte in Sabina RI 11 636 14417
Rocca Sinibalda RI 11 815 15232
Micigliano RI 12 127 15359
Varco Sabino RI 12 187 15546
Fiamignano RI 13 1413 16959
Marcetelli RI 14 89 17048
Rieti RI 14 47698 64746
Castel di Tora RI 16 288 65034
Torricella in Sabina RI 16 1342 66376
Cantalice RI 16 2755 69131
Colle di Tora RI 16 372 69503
Ascrea RI 17 234 69737
Poggio San Lorenzo RI 18 589 70326
Paganico Sabino RI 18 172 70498
Montenero Sabino RI 18 299 70797
Monteleone Sabino RI 18 1224 72021
Pescorocchiano RI 19 2075 74096
Collegiove RI 20 213 74309
Monte San Giovanni in Sabina RI 20 714 75023
Scoppito AQ 20 3727 78750
Poggio Moiano RI 20 2751 81501

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km W of L'Aquila (69753 inhabitants)
38 Km SE of Terni (111501 inhabitants)
46 Km NE of Guidonia Montecelio (88673 inhabitants)
47 Km NE of Tivoli (56533 inhabitants)
66 Km SW of Teramo (54892 inhabitants)
67 Km NE of Roma (2864731 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
75 Km E of Viterbo (67173 inhabitants)
76 Km N of Velletri (53303 inhabitants)
87 Km NE of Pomezia (62966 inhabitants)
89 Km NE of Aprilia (73446 inhabitants)
91 Km NE of Fiumicino (78395 inhabitants)
95 Km W of Chieti (51815 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
99 Km N of Latina (125985 inhabitants)
99 Km SE of Perugia (166134 inhabitants)
99 Km W 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
Bulletin
Rev1000 		ML 1.5 2021-12-19
20:02:22		 42.3502 13.0173 8 2022-03-30
13:04:35		 Bollettino Sismico Italiano INGV 100590651
Reviewed
Rev100 		ML 1.5 2021-12-19
20:02:22		 42.3502 13.0173 8 2021-12-19
20:33:04		 Sala Sismica INGV-Roma 98732541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-19 20:02:22 ± 0.13
Latitude 42.3502 ± 0.0054
Longitude 13.0173 ± 0.0097
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100590651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 847
Semi-minor axis of confidence ellipse (meter) 106
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42718
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 100590651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-04 10:29:59

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 98732541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-19 20:33:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HNE. 2021-12-19T20:02:38.38 0.3 undecidable manual S 184 44.622 50 0.82 56
IV.FAGN.HHZ. 2021-12-19T20:02:38.85 0.3 undecidable manual S 101 47.4192 50 0.54 63
IV.SMA1.EHZ. 2021-12-19T20:02:37.06 0.6 undecidable manual S 40 40.5261 50 0.58 42
IV.GAVE.HNE. 2021-12-19T20:02:35.91 0.6 undecidable manual S 345 39.2274 50 -0.23 46
IV.CAMP.HHE. 2021-12-19T20:02:35.67 0.6 undecidable manual S 57 38.1285 50 -0.15 47
IV.LNSS.HHZ. 2021-12-19T20:02:33.06 0.6 undecidable manual S 4 28.0497 107 0.27 46
IV.RM33.HNE. 2021-12-19T20:02:31.66 0.6 undecidable manual S 42 23.8539 109 0.25 47
IV.FAGN.HHZ. 2021-12-19T20:02:31.19 0.1 undecidable manual P 101 47.4192 50 -0.49 85
IV.CAMP.HHE. 2021-12-19T20:02:30.01 0.1 undecidable manual P 57 38.1285 50 -0.23 92
IV.GAVE.HNE. 2021-12-19T20:02:30.08 0.1 undecidable manual P 345 39.2274 50 -0.34 89
IV.CERT.HNE. 2021-12-19T20:02:30.89 0.1 undecidable manual P 184 44.622 50 -0.35 88
IV.SMA1.EHZ. 2021-12-19T20:02:30.60 0.1 undecidable manual P 40 40.5261 50 -0.01 95
IV.SRES.HHZ. 2021-12-19T20:02:30.82 3.0 undecidable manual P 0.11 0
IV.ARRO.EHZ. 2021-12-19T20:02:29.61 0.1 undecidable manual P 321 32.745 104 0.23 93
IV.LNSS.HHZ. 2021-12-19T20:02:28.58 0.1 positive manual P 4 28.0497 107 0.09 96
MN.AQU.HHE. 2021-12-19T20:02:28.90 0.1 undecidable manual P 89 31.746 105 -0.3 91
IV.RM33.HNE. 2021-12-19T20:02:27.78 0.1 negative manual P 42 23.8539 109 0.1 97
IV.FIAM.HHZ. 2021-12-19T20:02:27.72 0.6 undecidable manual S 138 12.2766 125 -0.05 50
IV.FIAM.HHZ. 2021-12-19T20:02:25.62 0.1 undecidable manual P 138 12.2766 125 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.3 0.0002445 0.42 AML other m 2021-12-19T20:02:28.18
IV.FIAM.HHE. ML:1.3 0.00023299999999999997 0.42 AML other m 2021-12-19T20:02:28.27
IV.LNSS.HHE. ML:1.5 0.000166 0.4 AML other m 2021-12-19T20:02:35.69
IV.LNSS.HHN. ML:1.5 0.0001725 0.24 AML other m 2021-12-19T20:02:37.13
IV.SMA1.EHE. ML:1.4 0.00009584999999999999 0.46 AML other m 2021-12-19T20:02:37.11
IV.SMA1.EHN. ML:1.5 0.00011675 1.48 AML other m 2021-12-19T20:02:39.77
IV.FAGN.HHN. ML:1.5 0.00008365 0.6 AML other m 2021-12-19T20:02:40.21
IV.FAGN.HHE. ML:1.6 0.00011549999999999999 0.3 AML other m 2021-12-19T20:02:43.82
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