Earthquake with magnitude of ML 1.2 on date 01-02-2020 and time 13:18:18 (Italy) in region 1 km W Cittaducale (RI)

A magnitude ML 1.2 earthquake occured in region: 1 km W Cittaducale (RI), on

  • 01-02-2020 12:18:18 (UTC)
  • 01-02-2020 13:18:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.39, 12.94 at 11 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.

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 1 6828 6828
Rieti RI 6 47698 54526
Castel Sant'Angelo RI 8 1308 55834
Concerviano RI 8 291 56125
Belmonte in Sabina RI 8 636 56761
Cantalice RI 10 2755 59516
Borgo Velino RI 10 972 60488
Micigliano RI 12 127 60615
Antrodoco RI 12 2588 63203
Rocca Sinibalda RI 13 815 64018
Longone Sabino RI 13 597 64615
Poggio Bustone RI 14 2055 66670
Contigliano RI 14 3783 70453
Monte San Giovanni in Sabina RI 15 714 71167
Petrella Salto RI 15 1197 72364
Torricella in Sabina RI 15 1342 73706
Montenero Sabino RI 15 299 74005
Greccio RI 16 1558 75563
Rivodutri RI 16 1253 76816
Poggio San Lorenzo RI 17 589 77405
Morro Reatino RI 18 373 77778
Varco Sabino RI 18 187 77965
Colli sul Velino RI 18 533 78498
Monteleone Sabino RI 18 1224 79722
Casaprota RI 19 744 80466
Labro RI 19 374 80840
Castel di Tora RI 19 288 81128
Colle di Tora RI 19 372 81500
Leonessa RI 20 2435 83935
Marcetelli RI 20 89 84024

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SE of Terni (111501 inhabitants)
38 Km W of L'Aquila (69753 inhabitants)
46 Km NE of Guidonia Montecelio (88673 inhabitants)
48 Km N of Tivoli (56533 inhabitants)
66 Km S of Foligno (57155 inhabitants)
66 Km NE of Roma (2864731 inhabitants)
68 Km E of Viterbo (67173 inhabitants)
70 Km W of Teramo (54892 inhabitants)
79 Km N of Velletri (53303 inhabitants)
87 Km NE of Pomezia (62966 inhabitants)
89 Km NE of Fiumicino (78395 inhabitants)
91 Km N of Aprilia (73446 inhabitants)
92 Km SE of Perugia (166134 inhabitants)
100 Km E of Civitavecchia (52991 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.2 2020-02-01
12:18:18
42.39 12.94 11 2020-02-01
12:53:44
Sala Sismica INGV-Roma 76100631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-01 12:18:18 ± 0.18
Latitude 42.39 ± 0.01
Longitude 12.94 ± 0.01
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76100631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1240
Semi-minor axis of confidence ellipse (meter) 700
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 1240
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 195
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.58636
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 76100631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-01 12:53:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NARO.HHZ. 2020-02-01T12:19:01.66 3.0 undecidable manual Sg 1.45 0
IV.RMP.HHZ. 2020-02-01T12:18:32.69 3.0 undecidable manual Sn -0.96 0
IV.GAVE.EHZ. 2020-02-01T12:18:30.06 0.6 undecidable manual S 354 0.3058 50 -0.25 64
IV.MMO1.EHZ. 2020-02-01T12:18:29.83 1.0 undecidable manual P 29 0.5864 50 -0.37 30
IV.RM33.EHZ. 2020-02-01T12:18:28.54 0.3 undecidable manual S 59 0.2383 50 0.25 98
IV.NRCA.HHZ. 2020-02-01T12:18:28.03 0.6 positive manual P 16 0.4649 50 -0.09 65
IV.ARRO.EHZ. 2020-02-01T12:18:28.14 0.6 undecidable manual S 327 0.2293 50 0.12 67
IV.LNSS.HHZ. 2020-02-01T12:18:27.63 0.6 undecidable manual S 20 0.2284 50 -0.37 64
IV.FIAM.HHZ. 2020-02-01T12:18:26.10 0.6 undecidable manual S 132 0.179 50 -0.44 63
IV.VIVA.HHZ. 2020-02-01T12:18:26.19 3.0 positive manual Pn 1.15 0
IV.GAVE.EHZ. 2020-02-01T12:18:25.44 1.0 undecidable manual P 354 0.3058 50 0.04 34
IV.ARRO.EHZ. 2020-02-01T12:18:24.37 0.6 negative manual P 327 0.2293 50 0.28 65
IV.RM33.EHZ. 2020-02-01T12:18:24.94 0.6 positive manual P 59 0.2383 50 0.7 57
IV.FIAM.HHZ. 2020-02-01T12:18:23.36 0.6 negative manual P 132 0.179 50 0.13 68
IV.LNSS.HHZ. 2020-02-01T12:18:23.92 0.3 undecidable manual P 20 0.2284 50 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.1 7.635E-5 1.68 AML other m 2020-02-01T12:18:28.92
IV.ARRO.EHE. ML:0.9 4.26E-5 0.24 AML other m 2020-02-01T12:18:28.24
IV.LNSS.HHE. ML:1.2 8.45E-5 0.1 AML other m 2020-02-01T12:18:28.53
IV.ARRO.EHN. ML:1 5.35E-5 0.58 AML other m 2020-02-01T12:18:28.67
IV.RM33.EHE. ML:1.3 0.00010645 0.36 AML other m 2020-02-01T12:18:29.28
IV.RM33.EHN. ML:1.1 6.975E-5 1.36 AML other m 2020-02-01T12:18:29.86
IV.GAVE.EHE. ML:1.1 5.695E-5 0.5 AML other m 2020-02-01T12:18:30.31
IV.GAVE.EHN. ML:1.2 6.965E-5 0.54 AML other m 2020-02-01T12:18:30.75
IV.RMP.HHN. ML:2.5 0.0005925 0.3 AML other m 2020-02-01T12:18:33.43
IV.NRCA.HHE. ML:1.4 6.42E-5 0.16 AML other m 2020-02-01T12:18:35.99
IV.NRCA.HHN. ML:1.4 6.215E-5 0.12 AML other m 2020-02-01T12:18:36.69
IV.RMP.HHE. ML:2.4 0.000527 1.26 AML other m 2020-02-01T12:18:50.16
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download