Earthquake with magnitude of ML 1.4 on date 04-09-2020 and time 22:40:52 (Italy) in region 3 km W Cittaducale (RI)

A magnitude ML 1.4 earthquake occured in region: 3 km W Cittaducale (RI), on

  • 04-09-2020 20:40:52 (UTC)
  • 04-09-2020 22:40:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4, 12.92 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cittaducale RI 3 6828 6828
Rieti RI 5 47698 54526
Cantalice RI 8 2755 57281
Belmonte in Sabina RI 9 636 57917
Castel Sant'Angelo RI 9 1308 59225
Concerviano RI 10 291 59516
Borgo Velino RI 12 972 60488
Poggio Bustone RI 12 2055 62543
Contigliano RI 13 3783 66326
Micigliano RI 13 127 66453
Rocca Sinibalda RI 13 815 67268
Antrodoco RI 14 2588 69856
Monte San Giovanni in Sabina RI 14 714 70570
Greccio RI 14 1558 72128
Longone Sabino RI 14 597 72725
Rivodutri RI 14 1253 73978
Montenero Sabino RI 15 299 74277
Torricella in Sabina RI 16 1342 75619
Morro Reatino RI 16 373 75992
Colli sul Velino RI 16 533 76525
Petrella Salto RI 17 1197 77722
Poggio San Lorenzo RI 17 589 78311
Labro RI 18 374 78685
Casaprota RI 19 744 79429
Monteleone Sabino RI 19 1224 80653
Leonessa RI 19 2435 83088
Cottanello RI 19 563 83651
Varco Sabino RI 19 187 83838
Montasola RI 20 395 84233

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of Terni (111501 inhabitants)
40 Km W of L'Aquila (69753 inhabitants)
47 Km NE of Guidonia Montecelio (88673 inhabitants)
49 Km N of Tivoli (56533 inhabitants)
65 Km S of Foligno (57155 inhabitants)
66 Km NE of Roma (2864731 inhabitants)
67 Km E of Viterbo (67173 inhabitants)
71 Km W of Teramo (54892 inhabitants)
80 Km N of Velletri (53303 inhabitants)
88 Km NE of Pomezia (62966 inhabitants)
89 Km NE of Fiumicino (78395 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
92 Km N of Aprilia (73446 inhabitants)
99 Km E of Civitavecchia (52991 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 2020-09-04
20:40:52
42.4 12.92 9 2021-02-26
14:56:05
Bollettino Sismico Italiano INGV 84691411
Reviewed
Rev100
ML 1.5 2020-09-04
20:40:52
42.39 12.92 10 2020-09-04
21:33:54
Sala Sismica INGV-Roma 82628521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-04 20:40:52 ± 0.07
Latitude 42.40 ± 0.00
Longitude 12.92 ± 0.00
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 84691411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 24
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
Epicentral distance of station farthest from the epicenter (degree) 0.65201
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 84691411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-13 09:56:44

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 82628521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-04 21:33:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VARE.HHZ. 2020-09-04T20:42:48.96 3.0 undecidable manual Sn -4.18 0
IV.FREG.EHZ. 2020-09-04T20:42:42.36 3.0 undecidable manual Sg 10.92 0
XK.SELL.HHZ. 2020-09-04T20:42:38.82 3.0 undecidable manual Sn -7.55 0
IV.MBAL.EHZ. 2020-09-04T20:42:31.13 3.0 undecidable manual Sn 0.76 0
IV.HPAC.HHZ. 2020-09-04T20:42:18.92 3.0 undecidable manual Pn 3.72 0
GU.GSCL.HHZ. 2020-09-04T20:42:13.84 3.0 undecidable manual Sg 9.33 0
XK.GIZZ.HHZ. 2020-09-04T20:42:05.21 3.0 negative manual Pg 12.57 0
IV.PTCC.HHZ. 2020-09-04T20:42:00.96 3.0 negative manual Pg 8.57 0
IV.FREG.EHZ. 2020-09-04T20:41:49.75 3.0 undecidable manual Pn 2.74 0
IV.FIR.HHZ. 2020-09-04T20:41:41.88 3.0 undecidable manual Sn -4.29 0
IV.PZUN.HHZ. 2020-09-04T20:41:40.23 3.0 positive manual Pg 6.99 0
IV.CMPR.HHZ. 2020-09-04T20:41:38.13 3.0 undecidable manual Pg 5.77 0
GU.GSCL.HHZ. 2020-09-04T20:41:30.46 3.0 undecidable manual Pn -1.42 0
IV.FDMO.HHZ. 2020-09-04T20:41:15.04 0.3 undecidable manual S 11 0.652 50 0.57 60
IV.GIUL.HHZ. 2020-09-04T20:41:15.65 3.0 undecidable manual S -1.99 0
IV.MC2.EHZ. 2020-09-04T20:41:12.33 0.3 undecidable manual S 21 0.5522 50 0.82 56
IV.MOMA.HHZ. 2020-09-04T20:41:09.70 0.3 undecidable manual S 328 0.482 50 0.26 68
IV.NRCA.HHZ. 2020-09-04T20:41:08.69 0.3 undecidable manual S 18 0.4605 50 -0.1 70
IV.SMA1.EHZ. 2020-09-04T20:41:06.75 0.3 undecidable manual S 52 0.3858 50 0.17 70
IV.CESX.HHZ. 2020-09-04T20:41:04.73 0.3 undecidable manual S 311 0.3247 50 -0.05 73
IV.FDMO.HHZ. 2020-09-04T20:41:04.84 0.1 undecidable manual P 11 0.652 50 -0.26 87
IV.GAVE.EHZ. 2020-09-04T20:41:03.83 0.3 undecidable manual S 356 0.2968 50 -0.12 72
IV.MC2.EHZ. 2020-09-04T20:41:03.21 0.1 undecidable manual P 21 0.5522 50 -0.18 90
IV.MOMA.HHZ. 2020-09-04T20:41:02.02 0.1 undecidable manual P 328 0.482 50 -0.17 92
IV.RM33.HNE. 2020-09-04T20:41:02.24 0.3 undecidable manual S 62 0.2446 109 -0.03 74
IV.LNSS.HHZ. 2020-09-04T20:41:01.66 0.3 undecidable manual S 23 0.2248 110 0.1 73
IV.ARRO.EHZ. 2020-09-04T20:41:01.07 0.3 undecidable manual S 328 0.2158 111 -0.14 73
IV.NRCA.HHZ. 2020-09-04T20:41:01.38 0.1 positive manual P 18 0.4605 50 -0.44 87
IV.SMA1.EHZ. 2020-09-04T20:41:00.42 0.1 positive manual P 52 0.3858 50 -0.12 95
IV.FIAM.HHZ. 2020-09-04T20:41:00.48 0.3 undecidable manual S 131 0.1943 113 0.03 75
IV.VIVA.HHZ. 2020-09-04T20:41:00.85 3.0 undecidable manual P -0.12 0
IT.MMP1.HGZ. 2020-09-04T20:41:00.59 0.3 undecidable manual S 221 0.1943 113 0.16 73
IV.CESX.HHZ. 2020-09-04T20:40:59.42 0.3 undecidable manual P 311 0.3247 50 -0.08 72
IV.GAVE.EHZ. 2020-09-04T20:40:58.88 0.1 positive manual P 356 0.2968 50 -0.14 96
IV.LNSS.HHZ. 2020-09-04T20:40:57.65 0.1 undecidable manual P 23 0.2248 110 0 100
IV.ARRO.EHZ. 2020-09-04T20:40:57.66 0.1 positive manual P 328 0.2158 111 0.21 96
IV.FIAM.HHZ. 2020-09-04T20:40:57.06 0.1 positive manual P 131 0.1943 113 0.06 100
IV.RM33.HNE. 2020-09-04T20:40:57.99 0.1 undecidable manual P 62 0.2446 109 -0.07 98
IT.MMP1.HGZ. 2020-09-04T20:40:57.16 0.3 undecidable manual P 221 0.1943 113 0.16 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHE. ML:0.9 5.045E-5 0.2 AML other m 2020-09-04T20:41:00.62
IV.LNSS.HHE. ML:1.8 0.0003425 1.9 AML other m 2020-09-04T20:41:02.97
IV.LNSS.HHN. ML:1.7 0.00029 1.24 AML other m 2020-09-04T20:41:02.08
IV.ARRO.EHE. ML:2 0.00057 0.2 AML other m 2020-09-04T20:41:02.08
IV.ARRO.EHN. ML:1.9 0.0004555 0.22 AML other m 2020-09-04T20:41:02.20
IV.FIAM.HHN. ML:0.8 4.315E-5 0.48 AML other m 2020-09-04T20:41:02.87
IV.GAVE.EHE. ML:1.6 0.0001525 0.9 AML other m 2020-09-04T20:41:04.21
IV.GAVE.EHN. ML:1.7 0.000223 0.62 AML other m 2020-09-04T20:41:04.23
IV.CESX.HHE. ML:1 4.145E-5 0.26 AML other m 2020-09-04T20:41:06.63
IV.CESX.HHN. ML:1.1 4.68E-5 0.54 AML other m 2020-09-04T20:41:07.83
IV.NRCA.HHE. ML:1.6 0.0001115 0.14 AML other m 2020-09-04T20:41:09.14
IV.SMA1.EHN. ML:1.2 5.37E-5 1.56 AML other m 2020-09-04T20:41:09.20
IV.MOMA.HHN. ML:1.2 3.725E-5 1.48 AML other m 2020-09-04T20:41:09.94
IV.NRCA.HHN. ML:1.5 8.18E-5 0.14 AML other m 2020-09-04T20:41:10.10
IV.SMA1.EHE. ML:1.4 7.605E-5 0.48 AML other m 2020-09-04T20:41:10.46
IV.MOMA.HHE. ML:1.3 5.07E-5 1.86 AML other m 2020-09-04T20:41:10.93
IV.FDMO.HHE. ML:1.3 3.695E-5 0.24 AML other m 2020-09-04T20:41:15.70
IV.FDMO.HHN. ML:1.3 3.235E-5 0.26 AML other m 2020-09-04T20:41:15.69
IV.FREG.EHE. ML:3.1 7.18E-5 0.42 AML other m 2020-09-04T20:43:00.57
IV.FREG.EHN. ML:3.2 8.541E-5 0.42 AML other m 2020-09-04T20:43:01.90
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download