Earthquake with magnitude of ML 0.7 on date 18-09-2019 and time 02:31:20 (Italy) in region 6 km W Sellano (PG)

A magnitude ML 0.7 earthquake occured in region: 6 km W Sellano (PG), on

  • 18-09-2019 00:31:20 (UTC)
  • 18-09-2019 02:31:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.92, 12.86 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sellano PG 7 1079 1079
Trevi PG 10 8469 9548
Cerreto di Spoleto PG 12 1075 10623
Campello sul Clitunno PG 12 2442 13065
Foligno PG 13 57155 70220
Monte Cavallo MC 15 145 70365
Preci PG 15 724 71089
Vallo di Nera PG 16 364 71453
Montefalco PG 17 5679 77132
Spello PG 17 8645 85777
Valtopina PG 18 1398 87175
Castel Ritaldi PG 18 3278 90453
Visso MC 19 1107 91560
Serravalle di Chienti MC 19 1070 92630

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km E of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
44 Km E of Perugia (166134 inhabitants)
75 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 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 0.7 2019-09-18
00:31:20
42.92 12.86 12 2019-09-18
00:39:58
Sala Sismica INGV-Roma 72505421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-18 00:31:20 ± 0.04
Latitude 42.92 ± 0.00
Longitude 12.86 ± 0.00
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 72505421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 266
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
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) 69
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 72505421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-18 00:39:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FAGN.HHZ. 2019-09-18T00:31:46.16 3.0 undecidable manual S -0.1 0
IV.LNSS.HHE. 2019-09-18T00:31:33.12 0.1 undecidable manual S 157 0.3408 93 0.02 96
IV.MC2.EHZ. 2019-09-18T00:31:30.28 0.6 undecidable manual S 91 0.2428 95 0.06 48
IV.MOMA.HNZ. 2019-09-18T00:31:30.36 0.1 undecidable manual S 242 0.2383 95 0.29 93
IV.GAVE.EHZ. 2019-09-18T00:31:29.59 0.1 undecidable manual S 173 0.2248 95 -0.1 97
IV.MML1.EHE. 2019-09-18T00:31:29.63 0.1 undecidable manual S 23 0.2149 96 0.25 94
IV.NRCA.HHZ. 2019-09-18T00:31:29.02 0.1 undecidable manual S 113 0.2059 97 -0.09 98
IV.FDMO.HHZ. 2019-09-18T00:31:29.02 0.1 undecidable manual S 54 0.2068 97 -0.14 97
IV.CESX.HHE. 2019-09-18T00:31:28.08 0.1 undecidable manual P 213 0.3651 92 -0.14 94
IV.ASSB.HHZ. 2019-09-18T00:31:28.51 0.1 undecidable manual S 311 0.1925 98 -0.21 96
IV.LNSS.HHE. 2019-09-18T00:31:27.83 0.1 undecidable manual P 157 0.3408 93 0.04 96
IV.ARRO.EHE. 2019-09-18T00:31:27.83 0.1 undecidable manual P 191 0.3426 93 -0.01 97
IV.SNTG.HHZ. 2019-09-18T00:31:27.95 1.0 positive manual P 10 0.3444 93 0.09 24
IV.MC2.EHZ. 2019-09-18T00:31:26.15 1.0 undecidable manual P 91 0.2428 95 0.02 24
IT.MTCL.HGE. 2019-09-18T00:31:26.96 0.1 undecidable manual S 53 0.1304 111 0.03 100
IV.ASSB.HHZ. 2019-09-18T00:31:25.24 0.6 undecidable manual P 311 0.1925 98 -0.03 50
IV.NRCA.HHZ. 2019-09-18T00:31:25.63 0.1 undecidable manual P 113 0.2059 97 0.14 96
IV.FDMO.HHZ. 2019-09-18T00:31:25.53 0.6 positive manual P 54 0.2068 97 0.01 49
IV.MOMA.HNZ. 2019-09-18T00:31:25.92 0.1 undecidable manual P 242 0.2383 95 -0.12 96
IV.CESI.HHZ. 2019-09-18T00:31:25.92 0.1 undecidable manual S 21 0.0953 125 -0.1 99
IV.GAVE.EHZ. 2019-09-18T00:31:25.87 0.3 undecidable manual P 173 0.2248 95 0.05 73
IV.MML1.EHE. 2019-09-18T00:31:25.57 0.1 undecidable manual P 23 0.2149 96 -0.07 98
IT.MTCL.HGE. 2019-09-18T00:31:24.26 0.1 undecidable manual P 53 0.1304 111 0.03 100
IV.CESI.HHZ. 2019-09-18T00:31:23.86 0.1 positive manual P 21 0.0953 125 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 7.767578E-5 0.14 AML other m 2019-09-18T00:31:26.25
IV.CESI.HHN. ML:1 0.00011793438 0.16 AML other m 2019-09-18T00:31:26.36
IV.CESI.HNN. ML:1.1 0.00014036766 0.18 AML other m 2019-09-18T00:31:26.37
IV.ASSB.HHE. ML:0.5 2.215465E-5 0.06 AML other m 2019-09-18T00:31:29.12
IV.ASSB.HHN. ML:0.6 2.465787E-5 0.06 AML other m 2019-09-18T00:31:29.09
IV.FDMO.HHE. ML:0.2 1.209074E-5 0.08 AML other m 2019-09-18T00:31:30.33
IV.FDMO.HHN. ML:0.4 1.72669105E-5 0.1 AML other m 2019-09-18T00:31:29.57
IV.GAVE.EHE. ML:0.7 2.814579E-5 0.16 AML other m 2019-09-18T00:31:30.20
IV.GAVE.EHN. ML:0.6 2.4440565E-5 0.12 AML other m 2019-09-18T00:31:30.83
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