Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 11-09-2020 and time 17:53:15 (Italy) in region 6 km NE Leonessa (RI)

A magnitude ML 1.3 earthquake occured in region: 6 km NE Leonessa (RI), on

  • 11-09-2020 15:53:15 (UTC)
  • 11-09-2020 17:53:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5960, 13.0140 at 12 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.

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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 6 2435 2435
Monteleone di Spoleto PG 8 599 3034
Posta RI 11 694 3728
Cittareale RI 12 482 4210
Borbona RI 14 617 4827
Cascia PG 14 3217 8044
Polino TR 14 233 8277
Poggiodomo PG 14 117 8394
Poggio Bustone RI 15 2055 10449
Rivodutri RI 16 1253 11702
Micigliano RI 16 127 11829
Morro Reatino RI 17 373 12202
Cantalice RI 17 2755 14957
Ferentillo TR 19 1913 16870
Labro RI 19 374 17244
Scheggino PG 20 461 17705

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Terni (111501 inhabitants)
42 Km NW of L'Aquila (69753 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
57 Km W of Teramo (54892 inhabitants)
70 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km N of Tivoli (56533 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
77 Km E of Viterbo (67173 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
99 Km W of Chieti (51815 inhabitants)
99 Km W of Pescara (121014 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.3 2020-09-11
15:53:15		 42.5965 13.0142 12 2020-09-11
16:05:48		 Sala Sismica INGV-Roma 82821741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-11 15:53:15 ± 0.06
Latitude 42.5965 ± 0.0036
Longitude 13.0142 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82821741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.01979
Epicentral distance of station farthest from the epicenter (degree) 0.44337
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 26
Type of magnitude ML
Reference to an origin 82821741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-11 16:05:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-09-11T15:53:25.08 0.6 undecidable manual S 17 27.5502 93 -0.18 49
IV.CESI.HHN. 2020-09-11T15:53:24.00 1.0 undecidable manual P 349 46.2204 91 0.02 24
IV.FDMO.HHZ. 2020-09-11T15:53:24.81 1.0 undecidable manual P 7 49.2174 91 0.37 23
IV.T1299.HNZ. 2020-09-11T15:53:23.77 0.3 undecidable manual S 79 22.2555 95 -0.09 75
IV.MMO1.EHZ. 2020-09-11T15:53:23.33 0.3 negative manual P 37 42.1245 92 -0.03 74
IT.MMP1.HGE. 2020-09-11T15:53:23.61 1.0 undecidable manual P 210 44.2224 91 -0.08 24
IV.ARRO.EHZ. 2020-09-11T15:53:23.01 0.6 undecidable manual S 265 20.3685 96 -0.34 48
IV.FIAM.HHZ. 2020-09-11T15:53:22.65 1.0 negative manual P 167 37.4292 92 0.02 25
IV.RM33.EHZ. 2020-09-11T15:53:22.75 0.6 undecidable manual S 121 19.0698 97 -0.25 49
IV.MC2.EHZ. 2020-09-11T15:53:22.82 1.0 undecidable manual P 22 37.7289 92 0.14 24
IV.GAVE.EHZ. 2020-09-11T15:53:21.42 0.6 undecidable manual S 317 14.4744 107 -0.38 48
IV.CAMP.HHN. 2020-09-11T15:53:21.89 1.0 undecidable manual P 102 32.9448 92 -0.05 25
IV.NRCA.HHZ. 2020-09-11T15:53:21.03 0.1 positive manual P 17 27.5502 93 -0.08 100
IV.SMA1.EHZ. 2020-09-11T15:53:21.04 0.1 positive manual P 82 26.4513 93 0.09 100
IV.ARRO.EHZ. 2020-09-11T15:53:20.33 0.3 negative manual P 265 20.3685 96 0.31 72
IV.T1299.HNZ. 2020-09-11T15:53:20.32 0.3 undecidable manual P 79 22.2555 95 0.02 77
IV.LNSS.HHZ. 2020-09-11T15:53:19.57 0.3 undecidable manual S 72 2.1978 166 0 78
IV.GAVE.EHZ. 2020-09-11T15:53:19.41 0.3 negative manual P 317 14.4744 107 0.3 73
IV.RM33.EHZ. 2020-09-11T15:53:19.80 0.3 undecidable manual P 121 19.0698 97 0 77
IV.LNSS.HHZ. 2020-09-11T15:53:17.94 0.6 undecidable manual P 72 2.1978 166 0.11 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:2.1 0.002055097 0.1152 AML other m 2020-09-11T15:53:19.69
IV.LNSS.HHN. ML:1.8 0.0009788484 0.0896 AML other m 2020-09-11T15:53:19.80
IV.LNSS.HNE. ML:2.1 0.0018485075000000003 0.1024 AML other m 2020-09-11T15:53:19.71
IV.LNSS.HNN. ML:1.8 0.0009143255500000001 0.0896 AML other m 2020-09-11T15:53:19.76
IV.GAVE.EHE. ML:1.4 0.00022021469999999998 0.256 AML other m 2020-09-11T15:53:22.44
IV.GAVE.EHN. ML:1.3 0.00018728795 0.1408 AML other m 2020-09-11T15:53:22.05
IV.GAVE.HNE. ML:1.4 0.00024379605000000003 0.256 AML other m 2020-09-11T15:53:22.44
IV.GAVE.HNN. ML:1.2 0.00012797745 0.768 AML other m 2020-09-11T15:53:21.07
IV.RM33.EHE. ML:0.9 0.00006022407 0.128 AML other m 2020-09-11T15:53:23.19
IV.RM33.EHN. ML:1.0 0.000062715335 0.256 AML other m 2020-09-11T15:53:24.48
IV.RM33.HNE. ML:1.2 0.00012205741 0.6784 AML other m 2020-09-11T15:53:23.12
IV.RM33.HNN. ML:1.0 0.00008162092999999999 0.5632 AML other m 2020-09-11T15:53:22.96
IV.ARRO.EHE. ML:1.2 0.00010885575 0.2048 AML other m 2020-09-11T15:53:23.66
IV.ARRO.EHN. ML:1.1 0.00008349296 0.1152 AML other m 2020-09-11T15:53:23.99
IV.NRCA.HHE. ML:1.5 0.00017657275 0.1152 AML other m 2020-09-11T15:53:25.47
IV.NRCA.HHN. ML:1.4 0.00014351385 0.1024 AML other m 2020-09-11T15:53:25.78
IV.NRCA.HNE. ML:1.5 0.00017233300000000002 0.1152 AML other m 2020-09-11T15:53:25.41
IV.NRCA.HNN. ML:1.6 0.00018731625 1.1264 AML other m 2020-09-11T15:53:25.04
IV.SMA1.EHE. ML:1.4 0.00014957409999999998 0.256 AML other m 2020-09-11T15:53:25.40
IV.SMA1.EHN. ML:1.0 0.0000540121 0.1408 AML other m 2020-09-11T15:53:25.34
IV.FIAM.HNE. ML:2.7 0.00200067915 1.1136 AML other m 2020-09-11T15:53:36.77
IV.FIAM.HNN. ML:1.5 0.000113105605 1.1136 AML other m 2020-09-11T15:53:33.08
IV.FIAM.HHE. ML:0.6 0.00001271219 0.3328 AML other m 2020-09-11T15:53:29.08
IV.FIAM.HHN. ML:0.4 0.000011696409500000001 0.1152 AML other m 2020-09-11T15:53:29.13
IV.FDMO.HHE. ML:0.8 0.00001655374 0.1536 AML other m 2020-09-11T15:53:32.76
IV.FDMO.HHN. ML:0.8 0.00001596678 0.32 AML other m 2020-09-11T15:53:32.59
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download