Earthquake with magnitude of ML 1.1 on date 22-07-2019 and time 10:39:09 (Italy) in region 3 km W Leonessa (RI)

A magnitude ML 1.1 earthquake occured in region: 3 km W Leonessa (RI), on

  • 22-07-2019 08:39:09 (UTC)
  • 22-07-2019 10:39:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.57, 12.94 at 14 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
Leonessa RI 3 2435 2435
Polino TR 8 233 2668
Monteleone di Spoleto PG 9 599 3267
Poggio Bustone RI 9 2055 5322
Rivodutri RI 9 1253 6575
Morro Reatino RI 10 373 6948
Cantalice RI 12 2755 9703
Labro RI 12 374 10077
Ferentillo TR 13 1913 11990
Arrone TR 14 2763 14753
Montefranco TR 14 1276 16029
Posta RI 14 694 16723
Colli sul Velino RI 15 533 17256
Poggiodomo PG 16 117 17373
Micigliano RI 17 127 17500
Cascia PG 17 3217 20717
Borbona RI 17 617 21334
Scheggino PG 18 461 21795
Cittareale RI 19 482 22277
Greccio RI 19 1558 23835
Rieti RI 20 47698 71533
Sant'Anatolia di Narco PG 20 564 72097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Terni (111501 inhabitants)
45 Km NW of L'Aquila (69753 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
64 Km W of Teramo (54892 inhabitants)
66 Km N of Guidonia Montecelio (88673 inhabitants)
69 Km N of Tivoli (56533 inhabitants)
70 Km E of Viterbo (67173 inhabitants)
74 Km SE of Perugia (166134 inhabitants)
84 Km NE of Roma (2864731 inhabitants)
99 Km N of Velletri (53303 inhabitants)
100 Km W of Montesilvano (53738 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 2019-07-22
08:39:09
42.57 12.94 14 2019-07-22
08:44:27
Sala Sismica INGV-Roma 70789001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-22 08:39:09 ± 0.06
Latitude 42.57 ± 0.00
Longitude 12.94 ± 0.00
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70789001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 268
Semi-minor axis of confidence ellipse (meter) 265
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 22
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.08094
Epicentral distance of station farthest from the epicenter (degree) 0.29048
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 70789001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-22 08:44:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2019-07-22T08:39:20.87 0.6 undecidable manual S 27 0.2905 99 0.14 47
IV.RM33.EHZ. 2019-07-22T08:39:18.59 0.6 undecidable manual S 107 0.214 104 0.08 49
IV.ARRO.EHZ. 2019-07-22T08:39:16.04 0.3 undecidable manual S 273 0.1268 122 -0.06 74
IV.GAVE.EHZ. 2019-07-22T08:39:16.12 0.6 undecidable manual S 345 0.1223 124 0.11 49
IV.NRCA.HHZ. 2019-07-22T08:39:15.92 0.1 undecidable manual P 27 0.2905 99 -0.1 94
IV.LNSS.HHZ. 2019-07-22T08:39:14.98 0.3 undecidable manual S 69 0.0809 139 -0.1 73
IV.RM33.EHZ. 2019-07-22T08:39:14.74 0.1 undecidable manual P 107 0.214 104 0 97
IV.ARRO.EHZ. 2019-07-22T08:39:13.34 0.1 undecidable manual P 273 0.1268 122 -0.02 99
IV.GAVE.EHZ. 2019-07-22T08:39:13.46 0.6 negative manual P 345 0.1223 124 0.16 48
IV.LNSS.HHZ. 2019-07-22T08:39:12.79 0.1 undecidable manual P 69 0.0809 139 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.4 0.000285 0.3 AML other m 2019-07-22T08:39:15.08
IV.LNSS.HHE. ML:1.3 0.0002155 0.46 AML other m 2019-07-22T08:39:15.02
IV.ARRO.EHE. ML:1 8.56E-5 1.4 AML other m 2019-07-22T08:39:16.20
IV.GAVE.EHN. ML:1.1 0.00010235 0.36 AML other m 2019-07-22T08:39:16.21
IV.ARRO.EHN. ML:1.2 0.0001305 0.1 AML other m 2019-07-22T08:39:16.49
IV.GAVE.EHE. ML:0.9 7.195E-5 0.28 AML other m 2019-07-22T08:39:16.64
IV.RM33.EHN. ML:0.9 4.625E-5 0.12 AML other m 2019-07-22T08:39:19.12
IV.RM33.EHE. ML:0.9 4.88E-5 1.06 AML other m 2019-07-22T08:39:20.10
IV.NRCA.HHN. ML:0.8 2.775E-5 0.1 AML other m 2019-07-22T08:39:21.43
IV.NRCA.HHE. ML:1.2 6.84E-5 0.16 AML other m 2019-07-22T08:39:21.90
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