Earthquake with magnitude of ML 1.1 on date 01-09-2019 and time 04:59:19 (Italy) in region 5 km W Arrone (TR)

A magnitude ML 1.1 earthquake occured in region: 5 km W Arrone (TR), on

  • 01-09-2019 02:59:19 (UTC)
  • 01-09-2019 04:59:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.56, 12.71 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
Arrone TR 5 2763 2763
Terni TR 6 111501 114264
Montefranco TR 6 1276 115540
Stroncone TR 8 4917 120457
Labro RI 8 374 120831
Colli sul Velino RI 9 533 121364
Ferentillo TR 9 1913 123277
Morro Reatino RI 11 373 123650
Polino TR 11 233 123883
Rivodutri RI 13 1253 125136
Greccio RI 13 1558 126694
San Gemini TR 15 5018 131712
Poggio Bustone RI 16 2055 133767
Configni RI 16 633 134400
Narni TR 17 19785 154185
Contigliano RI 17 3783 157968
Cottanello RI 17 563 158531
Cantalice RI 19 2755 161286
Spoleto PG 19 38218 199504
Scheggino PG 19 461 199965
Montasola RI 20 395 200360
Acquasparta TR 20 4778 205138

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Terni (111501 inhabitants)
44 Km S of Foligno (57155 inhabitants)
52 Km E of Viterbo (67173 inhabitants)
61 Km W of L'Aquila (69753 inhabitants)
62 Km N of Guidonia Montecelio (88673 inhabitants)
66 Km SE of Perugia (166134 inhabitants)
67 Km N of Tivoli (56533 inhabitants)
77 Km N of Roma (2864731 inhabitants)
82 Km W of Teramo (54892 inhabitants)
92 Km NE of Civitavecchia (52991 inhabitants)
96 Km NE of Fiumicino (78395 inhabitants)
97 Km N of Velletri (53303 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 1.1 2019-09-01
02:59:19
42.56 12.71 11 2019-09-01
04:26:21
Sala Sismica INGV-Roma 71996851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-01 02:59:19 ± 0.11
Latitude 42.56 ± 0.00
Longitude 12.71 ± 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 71996851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 730
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.48204
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 71996851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-01 04:26:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2019-09-01T02:59:37.65 0.1 undecidable manual S 355 0.482 90 0.93 69
IV.RM33.EHZ. 2019-09-01T02:59:33.25 0.1 undecidable manual S 98 0.3723 90 -0.23 89
IV.CERT.HHZ. 2019-09-01T02:59:31.80 3.0 undecidable manual P -0.42 0
IV.MOMA.HHZ. 2019-09-01T02:59:30.41 0.1 undecidable manual S 336 0.2635 90 0.15 94
IV.LNSS.HHZ. 2019-09-01T02:59:29.38 0.1 undecidable manual S 80 0.2437 90 -0.28 91
IV.ASSB.HHZ. 2019-09-01T02:59:29.87 0.6 negative manual P 355 0.482 90 0.22 44
IV.FIAM.HHZ. 2019-09-01T02:59:28.40 3.0 positive manual P 0.13 0
IV.RM33.EHZ. 2019-09-01T02:59:27.53 1.0 undecidable manual P 98 0.3723 90 -0.25 22
IV.GAVE.EHZ. 2019-09-01T02:59:27.91 0.1 undecidable manual S 45 0.1853 90 -0.03 98
IV.MOMA.HHZ. 2019-09-01T02:59:26.12 0.6 positive manual P 336 0.2635 90 0.2 47
IV.LNSS.HHZ. 2019-09-01T02:59:25.92 0.6 negative manual P 80 0.2437 90 0.35 46
IV.CESX.HHZ. 2019-09-01T02:59:25.44 0.1 undecidable manual S 296 0.1043 110 -0.12 96
IV.GAVE.EHZ. 2019-09-01T02:59:24.69 0.1 undecidable manual P 45 0.1853 90 0.11 96
IV.ARRO.EHZ. 2019-09-01T02:59:24.16 0.1 undecidable manual S 66 0.0414 150 0 100
IV.CESX.HHZ. 2019-09-01T02:59:23.25 0.3 negative manual P 296 0.1043 110 0.05 74
IV.ARRO.EHZ. 2019-09-01T02:59:22.57 0.1 positive manual P 66 0.0414 150 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.1 0.0002005 0.38 AML other m 2019-09-01T02:59:24.66
IV.ARRO.EHE. ML:1 0.0001545 1.16 AML other m 2019-09-01T02:59:25.15
IV.CESX.HHN. ML:0.9 9.41E-5 0.18 AML other m 2019-09-01T02:59:26.57
IV.CESX.HHE. ML:0.8 6.715E-5 1.6 AML other m 2019-09-01T02:59:27.06
IV.GAVE.EHN. ML:1.4 0.000186 0.36 AML other m 2019-09-01T02:59:28.35
IV.GAVE.EHE. ML:1.3 0.0001365 0.18 AML other m 2019-09-01T02:59:28.38
IV.LNSS.HHE. ML:1.6 0.0002015 0.12 AML other m 2019-09-01T02:59:29.94
IV.LNSS.HHN. ML:1.7 0.000247 0.22 AML other m 2019-09-01T02:59:30.81
IV.MOMA.HHE. ML:1.3 0.0001 0.34 AML other m 2019-09-01T02:59:30.90
IV.MOMA.HHN. ML:1.4 0.000129 1.82 AML other m 2019-09-01T02:59:30.08
IV.FIAM.HHN. ML:0.7 1.33E-5 0.32 AML other m 2019-09-01T02:59:35.31
IV.FIAM.HHE. ML:0.7 1.3E-5 0.62 AML other m 2019-09-01T02:59:35.46
IV.ASSB.HHE. ML:0.8 1.4E-5 1.24 AML other m 2019-09-01T02:59:38.70
IV.ASSB.HHN. ML:0.8 1.38E-5 0.46 AML other m 2019-09-01T02:59:40.48
IV.CERT.HHN. ML:1 1.46E-5 0.82 AML other m 2019-09-01T02:59:42.96
IV.CERT.HHE. ML:1 1.53E-5 0.64 AML other m 2019-09-01T02:59:43.13
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