INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.1 on date 16-09-2018 and time 02:10:17 (Italy) in region 5 km E Leonessa (RI)

A magnitude ML 1.1 earthquake occured in region: 5 km E Leonessa (RI), on

  • 16-09-2018 00:10:17 (UTC)
  • 16-09-2018 02:10:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.58, 13.02 at 16 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 5 2435 2435
Posta RI 8 694 3129
Monteleone di Spoleto PG 10 599 3728
Borbona RI 12 617 4345
Cittareale RI 12 482 4827
Poggio Bustone RI 14 2055 6882
Micigliano RI 14 127 7009
Polino TR 15 233 7242
Rivodutri RI 15 1253 8495
Cantalice RI 15 2755 11250
Cascia PG 16 3217 14467
Morro Reatino RI 16 373 14840
Poggiodomo PG 17 117 14957
Antrodoco RI 18 2588 17545
Labro RI 19 374 17919
Borgo Velino RI 19 972 18891
Montereale AQ 19 2581 21472
Ferentillo TR 20 1913 23385
Castel Sant'Angelo RI 20 1308 24693

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Terni (111501 inhabitants)
40 Km NW of L'Aquila (69753 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
57 Km W of Teramo (54892 inhabitants)
68 Km NE of Guidonia Montecelio (88673 inhabitants)
70 Km N of Tivoli (56533 inhabitants)
77 Km E of Viterbo (67173 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
97 Km W of Chieti (51815 inhabitants)
99 Km W of Pescara (121014 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 2018-09-16
00:10:17
42.58 13.02 16 2018-09-16
00:19:01
Sala Sismica INGV-Roma 60994241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-16 00:10:17 ± 0.07
Latitude 42.58 ± 0.00
Longitude 13.02 ± 0.00
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 60994241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 363
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 3
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.66999
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 60994241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-16 00:19:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2018-09-16T00:11:34.57 3.0 undecidable manual Sg 16.370001 0
IV.MBAL.EHZ. 2018-09-16T00:11:34.70 3.0 undecidable manual Sg 7.71 0
IV.PLMA.HHZ. 2018-09-16T00:11:23.59 3.0 undecidable manual Sn 5.91 0
MN.TRI.HHZ. 2018-09-16T00:11:11.65 3.0 undecidable manual Sn -2.94 0
IV.LPEL.HHZ. 2018-09-16T00:10:52.82 3.0 undecidable manual Sg 4.28 0
IV.MBAL.EHZ. 2018-09-16T00:10:46.77 3.0 undecidable manual Pn -5.27 0
IV.VULT.HHZ. 2018-09-16T00:10:46.19 3.0 negative manual Pn -4.73 0
IV.SACS.HHZ. 2018-09-16T00:10:37.57 3.0 undecidable manual Sn -3.39 0
IV.MC2.EHZ. 2018-09-16T00:10:31.59 0.3 undecidable manual S 20 0.3579 101 0.55 63
IV.MMO1.EHZ. 2018-09-16T00:10:31.99 0.3 undecidable manual S 35 0.3939 100 -0.11 69
IV.ATCC.EHZ. 2018-09-16T00:10:30.77 0.3 undecidable manual P 336 0.67 95 0 66
IV.ASSB.HHZ. 2018-09-16T00:10:28.62 0.1 undecidable manual P 330 0.5369 96 0.11 89
IV.NRCA.HHZ. 2018-09-16T00:10:28.29 0.1 undecidable manual S 15 0.2671 106 -0.14 94
IV.MF5.EHZ. 2018-09-16T00:10:28.54 0.1 undecidable manual P 38 0.5234 97 0.28 86
IV.SMA1.EHZ. 2018-09-16T00:10:27.64 0.1 undecidable manual S 76 0.2374 109 0.04 96
IV.FDMO.HHZ. 2018-09-16T00:10:27.09 0.1 undecidable manual P 6 0.4632 98 -0.16 90
IV.ARRO.EHZ. 2018-09-16T00:10:26.33 0.1 undecidable manual S 271 0.188 117 0.09 96
IV.CESI.HHZ. 2018-09-16T00:10:26.79 0.1 undecidable manual P 349 0.438 98 -0.03 93
OB.GAVE.EHZ. 2018-09-16T00:10:25.06 0.1 undecidable manual S 321 0.1493 125 -0.2 94
IV.MC2.EHZ. 2018-09-16T00:10:25.45 0.1 undecidable manual P 20 0.3579 101 -0.02 94
IV.MMO1.EHZ. 2018-09-16T00:10:25.86 0.1 undecidable manual P 35 0.3939 100 -0.22 90
IV.RM33.EHZ. 2018-09-16T00:10:25.39 0.1 undecidable manual S 115 0.1574 123 -0.06 97
IV.BLLA.EHZ. 2018-09-16T00:10:24.44 3.0 undecidable manual P -1.39 0
IV.FIAM.HHZ. 2018-09-16T00:10:24.60 0.1 undecidable manual P 167 0.3148 103 -0.16 92
IV.LNSS.HHZ. 2018-09-16T00:10:23.18 0.1 undecidable manual S 27 0.0306 166 -0.02 100
IV.SMA1.EHZ. 2018-09-16T00:10:23.56 0.1 positive manual P 76 0.2374 109 0.08 95
IV.NRCA.HHZ. 2018-09-16T00:10:23.80 0.1 undecidable manual P 15 0.2671 106 -0.16 93
IV.RM33.EHZ. 2018-09-16T00:10:22.26 0.1 undecidable manual P 115 0.1574 123 0.02 98
IV.ARRO.EHZ. 2018-09-16T00:10:22.81 0.1 negative manual P 271 0.188 117 0.11 95
OB.GAVE.EHZ. 2018-09-16T00:10:22.18 0.1 undecidable manual P 321 0.1493 125 0.05 97
IV.LNSS.HHZ. 2018-09-16T00:10:21.03 0.1 undecidable manual P 27 0.0306 166 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.5 0.000322 0.18 AML other m 2018-09-16T00:10:23.34
IV.LNSS.HHN. ML:1.6 0.0004125 0.32 AML other m 2018-09-16T00:10:23.50
OB.GAVE.EHN. ML:1.4 0.0001885 0.56 AML other m 2018-09-16T00:10:25.57
IV.RM33.EHE. ML:1 6.27E-5 0.12 AML other m 2018-09-16T00:10:25.76
OB.GAVE.EHE. ML:1.3 0.000152 0.52 AML other m 2018-09-16T00:10:26.40
IV.ARRO.EHN. ML:1 6.09E-5 0.56 AML other m 2018-09-16T00:10:27.00
IV.ARRO.EHE. ML:1 5.265E-5 1.36 AML other m 2018-09-16T00:10:27.78
IV.RM33.EHN. ML:0.9 4.785E-5 0.26 AML other m 2018-09-16T00:10:27.27
IV.SMA1.EHN. ML:1.3 9.07E-5 0.24 AML other m 2018-09-16T00:10:28.05
IV.SMA1.EHE. ML:1.2 8.44E-5 1.48 AML other m 2018-09-16T00:10:28.76
IV.NRCA.HHN. ML:1.3 8.89E-5 0.16 AML other m 2018-09-16T00:10:29.15
IV.NRCA.HHE. ML:1.3 8.11E-5 0.58 AML other m 2018-09-16T00:10:30.65
IV.FIAM.HHE. ML:0.7 2.135E-5 0.78 AML other m 2018-09-16T00:10:31.62
IV.FIAM.HHN. ML:0.8 2.48E-5 1.52 AML other m 2018-09-16T00:10:31.22
IV.CESI.HHN. ML:1.1 3.665E-5 1.04 AML other m 2018-09-16T00:10:34.05
IV.CESI.HHE. ML:1 2.53E-5 0.98 AML other m 2018-09-16T00:10:34.82
IV.FDMO.HHE. ML:0.9 1.865E-5 0.32 AML other m 2018-09-16T00:10:35.42
IV.FDMO.HHN. ML:0.8 1.635E-5 0.58 AML other m 2018-09-16T00:10:35.99
IV.ASSB.HHE. ML:1 2.075E-5 0.14 AML other m 2018-09-16T00:10:37.52
IV.ASSB.HHN. ML:1 1.8E-5 1.84 AML other m 2018-09-16T00:10:38.92
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