ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.3 on date 25-03-2019 and time 14:14:23 (Italy) in region 2 km NW Contigliano (RI)

A magnitude ML 1.3 earthquake occured in region: 2 km NW Contigliano (RI), on

  • 25-03-2019 13:14:23 (UTC)
  • 25-03-2019 14:14:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.42, 12.75 at 10 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
Contigliano RI 2 3783 3783
Greccio RI 4 1558 5341
Cottanello RI 6 563 5904
Montasola RI 7 395 6299
Colli sul Velino RI 9 533 6832
Configni RI 9 633 7465
Rieti RI 9 47698 55163
Vacone RI 10 256 55419
Monte San Giovanni in Sabina RI 11 714 56133
Stroncone TR 11 4917 61050
Casperia RI 12 1246 62296
Labro RI 12 374 62670
Torri in Sabina RI 12 1256 63926
Roccantica RI 12 563 64489
Morro Reatino RI 13 373 64862
Cantalice RI 13 2755 67617
Rivodutri RI 13 1253 68870
Poggio Bustone RI 14 2055 70925
Montebuono RI 14 883 71808
Tarano RI 15 1444 73252
Poggio Catino RI 15 1341 74593
Cantalupo in Sabina RI 15 1685 76278
Calvi dell'Umbria TR 15 1856 78134
Selci RI 16 1106 79240
Belmonte in Sabina RI 16 636 79876
Montenero Sabino RI 17 299 80175
Cittaducale RI 17 6828 87003
Terni TR 18 111501 198504
Arrone TR 18 2763 201267
Salisano RI 18 567 201834
Poggio Mirteto RI 19 6315 208149
Forano RI 19 3179 211328
Collevecchio RI 19 1577 212905
Montefranco TR 19 1276 214181
Mompeo RI 20 530 214711
Polino TR 20 233 214944
Casaprota RI 20 744 215688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SE of Terni (111501 inhabitants)
47 Km N of Guidonia Montecelio (88673 inhabitants)
51 Km N of Tivoli (56533 inhabitants)
53 Km E of Viterbo (67173 inhabitants)
54 Km W of L'Aquila (69753 inhabitants)
59 Km S of Foligno (57155 inhabitants)
63 Km NE of Roma (2864731 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
82 Km N of Velletri (53303 inhabitants)
82 Km W of Teramo (54892 inhabitants)
84 Km NE of Fiumicino (78395 inhabitants)
86 Km N of Pomezia (62966 inhabitants)
87 Km E of Civitavecchia (52991 inhabitants)
93 Km N of Aprilia (73446 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 1.3 2019-03-25
13:14:23
42.42 12.75 10 2019-03-25
13:25:22
Sala Sismica INGV-Roma 66907921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-25 13:14:23 ± 0.04
Latitude 42.42 ± 0.00
Longitude 12.75 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66907921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 365
Semi-minor axis of confidence ellipse (meter) 102
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.15558
Epicentral distance of station farthest from the epicenter (degree) 0.50362
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 66907921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-25 13:25:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CERT.HHE. 2019-03-25T13:14:40.85 0.3 undecidable manual S 160 0.5036 50 0.03 72
IV.NRCA.HHE. 2019-03-25T13:14:40.59 0.3 undecidable manual S 33 0.4883 50 0.23 69
IV.MOMA.HHZ. 2019-03-25T13:14:37.96 0.3 undecidable manual S 341 0.4029 50 0.12 72
IV.RM33.EHZ. 2019-03-25T13:14:36.49 0.3 undecidable manual S 76 0.3507 50 0.2 72
IV.FIAM.HHZ. 2019-03-25T13:14:35.04 0.3 undecidable manual S 120 0.3112 50 -0.07 74
IV.LNSS.HHZ. 2019-03-25T13:14:34.09 0.3 undecidable manual S 50 0.277 50 -0.02 75
IV.GAVE.EHZ. 2019-03-25T13:14:34.21 0.3 undecidable manual S 21 0.2878 50 -0.21 72
IV.CERT.HHE. 2019-03-25T13:14:33.49 0.3 undecidable manual P 160 0.5036 50 0.11 71
IV.NRCA.HHE. 2019-03-25T13:14:33.06 0.3 undecidable manual P 33 0.4883 50 -0.05 72
IV.MOMA.HHZ. 2019-03-25T13:14:31.62 0.3 undecidable manual P 341 0.4029 50 -0.03 73
IV.FIAM.HHZ. 2019-03-25T13:14:30.02 0.3 undecidable manual P 120 0.3112 50 -0.05 74
IV.RM33.EHZ. 2019-03-25T13:14:30.67 0.3 undecidable manual P 76 0.3507 50 -0.09 73
IT.MMP1.HGZ. 2019-03-25T13:14:30.77 0.6 undecidable manual S 181 0.1745 117 0.01 51
IV.ARRO.EHZ. 2019-03-25T13:14:30.13 0.3 undecidable manual S 3 0.1556 120 0.01 77
IV.LNSS.HHZ. 2019-03-25T13:14:29.45 0.1 undecidable manual P 50 0.277 50 -0.05 100
IV.GAVE.EHZ. 2019-03-25T13:14:29.53 0.1 undecidable manual P 21 0.2878 50 -0.15 98
IV.ARRO.EHZ. 2019-03-25T13:14:27.29 0.3 undecidable manual P 3 0.1556 120 0.09 76
IT.MMP1.HGZ. 2019-03-25T13:14:27.55 0.3 undecidable manual P 181 0.1745 117 -0.01 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1.2 4.331012E-5 0.1792 AML other m 2019-03-25T13:14:39.38
IV.LNSS.HHE. ML:1.6 0.0001721482 0.32 AML other m 2019-03-25T13:14:34.36
IV.LNSS.HHN. ML:1.6 0.000197517 0.1408 AML other m 2019-03-25T13:14:34.92
IV.GAVE.EHE. ML:1.8 0.00026932755 0.16 AML other m 2019-03-25T13:14:35.00
IV.GAVE.EHN. ML:1.6 0.0001641421 0.1984 AML other m 2019-03-25T13:14:34.85
IV.RM33.EHE. ML:1 3.7187965E-5 0.16 AML other m 2019-03-25T13:14:38.02
IV.RM33.EHN. ML:1.2 5.5597485E-5 0.2432 AML other m 2019-03-25T13:14:38.15
IV.ARRO.EHE. ML:1.2 0.0001248807 0.1856 AML other m 2019-03-25T13:14:31.86
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