ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.7 on date 24-02-2019 and time 10:43:06 (Italy) in region 4 km W Greccio (RI)

A magnitude ML 1.7 earthquake occured in region: 4 km W Greccio (RI), on

  • 24-02-2019 09:43:06 (UTC)
  • 24-02-2019 10:43:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.47, 12.73 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
Greccio RI 4 1558 1558
Colli sul Velino RI 5 533 2091
Stroncone TR 7 4917 7008
Contigliano RI 7 3783 10791
Cottanello RI 8 563 11354
Labro RI 9 374 11728
Configni RI 9 633 12361
Montasola RI 10 395 12756
Morro Reatino RI 11 373 13129
Rivodutri RI 12 1253 14382
Vacone RI 12 256 14638
Terni TR 12 111501 126139
Rieti RI 13 47698 173837
Arrone TR 13 2763 176600
Poggio Bustone RI 13 2055 178655
Cantalice RI 14 2755 181410
Montefranco TR 15 1276 182686
Torri in Sabina RI 15 1256 183942
Casperia RI 15 1246 185188
Calvi dell'Umbria TR 15 1856 187044
Montebuono RI 16 883 187927
Monte San Giovanni in Sabina RI 16 714 188641
Polino TR 16 233 188874
Roccantica RI 17 563 189437
Tarano RI 17 1444 190881
Ferentillo TR 18 1913 192794
Narni TR 19 19785 212579
Selci RI 19 1106 213685
Cantalupo in Sabina RI 19 1685 215370
Poggio Catino RI 20 1341 216711

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of Terni (111501 inhabitants)
52 Km E of Viterbo (67173 inhabitants)
52 Km N of Guidonia Montecelio (88673 inhabitants)
54 Km S of Foligno (57155 inhabitants)
56 Km W of L'Aquila (69753 inhabitants)
56 Km N of Tivoli (56533 inhabitants)
67 Km NE of Roma (2864731 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
83 Km W of Teramo (54892 inhabitants)
87 Km N of Velletri (53303 inhabitants)
87 Km NE of Fiumicino (78395 inhabitants)
88 Km E of Civitavecchia (52991 inhabitants)
91 Km N of Pomezia (62966 inhabitants)
97 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 1.7 2019-02-24
09:43:06
42.47 12.73 10 2019-02-24
09:56:10
Sala Sismica INGV-Roma 65905261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-24 09:43:06 ± 0.07
Latitude 42.47 ± 0.00
Longitude 12.73 ± 0.01
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 65905261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 307
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 31
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) 1.03962
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 65905261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-24 09:56:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IX.SFL3.HNZ.01 2019-02-24T09:44:31.66 3.0 undecidable manual Sg 9.32 0
IV.CDRU.HHZ. 2019-02-24T09:44:29.32 3.0 undecidable manual Sg 5.79 0
IV.NDIM.HHZ. 2019-02-24T09:44:19.96 3.0 undecidable manual Sn -0.47 0
IV.ZONE.HHZ. 2019-02-24T09:44:14.76 3.0 undecidable manual Pg 13.05 0
IV.MTGR.HHZ. 2019-02-24T09:44:11.74 3.0 negative manual Pn -1.87 0
IV.MILN.HNZ. 2019-02-24T09:44:11.19 3.0 undecidable manual Pn 7.68 0
IV.EUCT.HNZ. 2019-02-24T09:44:07.15 3.0 undecidable manual Pn 5.8 0
IV.MSAG.HHZ. 2019-02-24T09:43:45.11 3.0 undecidable manual Pn -0.28 0
IV.MTMR.HNZ. 2019-02-24T09:43:44.87 3.0 negative manual Pn 1.99 0
IV.FDMO.HHZ. 2019-02-24T09:43:27.67 0.3 undecidable manual S 25 0.625 50 0.37 64
IV.ASSB.HHZ. 2019-02-24T09:43:26.42 0.6 undecidable manual S 355 0.5756 50 0.57 41
IV.CESI.HHZ. 2019-02-24T09:43:25.60 0.3 undecidable manual S 13 0.5504 50 0.5 63
IV.ARVD.HHZ. 2019-02-24T09:43:25.73 0.1 undecidable manual P 8 1.0396 50 0.27 80
IV.CERT.HHZ. 2019-02-24T09:43:25.57 0.3 undecidable manual S 160 0.5522 50 0.43 64
IT.GNU.HGE. 2019-02-24T09:43:19.11 0.6 undecidable manual S 341 0.3552 50 -0.19 47
IV.RM33.EHZ. 2019-02-24T09:43:19.62 0.3 undecidable manual S 83 0.3588 50 0.2 70
IV.FIAM.HHE. 2019-02-24T09:43:19.06 0.3 undecidable manual S 125 0.3489 50 -0.07 72
IV.MOMA.HHE. 2019-02-24T09:43:19.25 0.3 undecidable manual S 341 0.3552 50 -0.06 72
IV.FDMO.HHZ. 2019-02-24T09:43:18.42 0.1 undecidable manual P 25 0.625 50 0.06 91
IV.SRES.HHE. 2019-02-24T09:43:17.56 0.3 undecidable manual S 215 0.2833 50 0.37 69
IV.ASSB.HHZ. 2019-02-24T09:43:17.29 0.1 undecidable manual P 355 0.5756 50 -0.23 89
IV.LNSS.HHZ. 2019-02-24T09:43:16.47 0.3 undecidable manual S 59 0.2644 50 -0.16 72
IV.CESI.HHZ. 2019-02-24T09:43:16.99 0.1 undecidable manual P 13 0.5504 50 -0.1 92
IV.CERT.HHZ. 2019-02-24T09:43:16.80 0.1 undecidable manual P 160 0.5522 50 -0.31 88
IV.GAVE.EHE. 2019-02-24T09:43:15.80 0.3 undecidable manual S 28 0.2536 50 -0.5 67
IT.MMP1.HGE. 2019-02-24T09:43:15.20 0.3 undecidable manual S 177 0.2203 50 -0.11 73
IV.RM33.EHZ. 2019-02-24T09:43:13.74 0.1 undecidable manual P 83 0.3588 50 -0.07 96
IV.FIAM.HHE. 2019-02-24T09:43:13.76 0.3 undecidable manual P 125 0.3489 50 0.12 71
IV.CESX.HHZ. 2019-02-24T09:43:13.91 0.3 undecidable manual S 323 0.1754 118 0.13 74
IV.MOMA.HHE. 2019-02-24T09:43:13.66 0.1 undecidable manual P 341 0.3552 50 -0.09 96
IT.GNU.HGE. 2019-02-24T09:43:13.45 0.3 undecidable manual P 341 0.3552 50 -0.29 69
IV.SRES.HHE. 2019-02-24T09:43:12.32 0.3 undecidable manual P 215 0.2833 50 -0.2 71
IV.LNSS.HHZ. 2019-02-24T09:43:12.10 0.1 undecidable manual P 59 0.2644 50 -0.09 97
IT.MMP1.HGE. 2019-02-24T09:43:11.49 0.1 undecidable manual P 177 0.2203 50 0.05 99
IT.TRN1.HGE. 2019-02-24T09:43:11.66 0.3 undecidable manual S 325 0.1088 130 0.01 76
IV.GAVE.EHE. 2019-02-24T09:43:11.76 0.1 undecidable manual P 28 0.2536 50 -0.25 94
IV.ARRO.EHZ. 2019-02-24T09:43:11.88 0.1 undecidable manual S 13 0.1133 129 0.1 100
IV.CESX.HHZ. 2019-02-24T09:43:10.62 0.1 undecidable manual P 323 0.1754 118 0.07 100
IV.ARRO.EHZ. 2019-02-24T09:43:09.65 0.1 undecidable manual P 13 0.1133 129 0.25 97
IT.TRN1.HGE. 2019-02-24T09:43:08.65 0.6 undecidable manual P 325 0.1088 130 -0.68 43
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:2.2 0.000846 0.26 AML other m 2019-02-24T09:43:17.55
IV.ARRO.EHN. ML:2 0.001045 0.16 AML other m 2019-02-24T09:43:12.09
IV.CESX.HHE. ML:1.6 0.0002955 1.02 AML other m 2019-02-24T09:43:14.13
IV.CESX.HHN. ML:1.6 0.0002675 1.8 AML other m 2019-02-24T09:43:15.08
IV.LNSS.HHE. ML:2.2 0.0007755 0.12 AML other m 2019-02-24T09:43:17.12
IV.LNSS.HNE. ML:2.2 0.00072467115 0.1216 AML other m 2019-02-24T09:43:17.12
IV.LNSS.HNN. ML:2.2 0.00076644325 0.2496 AML other m 2019-02-24T09:43:17.55
IV.RM33.EHE. ML:1.5 0.00012151587 0.1792 AML other m 2019-02-24T09:43:20.16
IV.RM33.EHN. ML:1.6 0.00012293635 0.2368 AML other m 2019-02-24T09:43:21.17
IV.RM33.HNE. ML:1.6 0.0001231952 0.1664 AML other m 2019-02-24T09:43:20.16
IV.RM33.HNN. ML:1.6 0.00013699416 0.2048 AML other m 2019-02-24T09:43:21.63
IV.CESI.HHE. ML:1.6 7.5484215E-5 0.2816 AML other m 2019-02-24T09:43:27.74
IV.CESI.HHN. ML:1.8 0.00012479405 0.2624 AML other m 2019-02-24T09:43:25.67
IV.FDMO.HHE. ML:1.8 0.0001047563 0.2816 AML other m 2019-02-24T09:43:28.16
IV.FDMO.HHN. ML:1.7 8.7648935E-5 0.384 AML other m 2019-02-24T09:43:28.03
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