Earthquake with magnitude of ML 0.8 on date 11-08-2019 and time 22:25:38 (Italy) in region 5 km W Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 5 km W Sellano (PG), on

  • 11-08-2019 20:25:38 (UTC)
  • 11-08-2019 22:25:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9, 12.87 at 10 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 5 1079 1079
Cerreto di Spoleto PG 10 1075 2154
Trevi PG 10 8469 10623
Campello sul Clitunno PG 12 2442 13065
Preci PG 14 724 13789
Foligno PG 15 57155 70944
Monte Cavallo MC 15 145 71089
Vallo di Nera PG 15 364 71453
Montefalco PG 18 5679 77132
Visso MC 18 1107 78239
Castel Ritaldi PG 18 3278 81517
Spello PG 19 8645 90162
Sant'Anatolia di Narco PG 19 564 90726
Valtopina PG 20 1398 92124
Serravalle di Chienti MC 20 1070 93194

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
45 Km SE of Perugia (166134 inhabitants)
73 Km W of Teramo (54892 inhabitants)
75 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 0.8 2019-08-11
20:25:38
42.9 12.87 10 2019-08-11
20:34:12
Sala Sismica INGV-Roma 71391991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-11 20:25:38 ± 0.07
Latitude 42.90 ± 0.00
Longitude 12.87 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71391991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 156
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.45775
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 71391991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-11 20:34:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-08-11T20:25:55.53 0.3 undecidable manual S 22 0.4578 50 0.74 78
IV.SNTG.HHZ. 2019-08-11T20:25:51.47 0.3 undecidable manual S 8 0.3543 50 -0.27 92
IV.CSP1.EHZ. 2019-08-11T20:25:50.29 0.3 undecidable manual S 52 0.3085 50 -0.09 97
IV.ASSB.HHZ. 2019-08-11T20:25:47.04 0.3 undecidable manual S 312 0.2068 114 -0.23 96
IV.EL6.EHZ. 2019-08-11T20:25:47.90 0.3 undecidable manual P 22 0.4578 50 -0.03 95
IV.GAVE.HNZ. 2019-08-11T20:25:47.50 0.3 undecidable manual S 175 0.2122 113 0.05 99
IV.MML1.HNZ. 2019-08-11T20:25:47.81 0.3 undecidable manual S 20 0.2221 112 0.01 100
IV.SNTG.HHZ. 2019-08-11T20:25:46.07 0.3 undecidable manual P 8 0.3543 50 -0.1 96
IV.NRCA.HNZ. 2019-08-11T20:25:46.61 0.3 undecidable manual S 111 0.1925 115 -0.14 98
IV.FDMO.HHZ. 2019-08-11T20:25:46.85 0.3 undecidable manual S 50 0.2068 114 -0.41 92
IV.FEMA.HNZ. 2019-08-11T20:25:45.19 0.3 undecidable manual S 66 0.1439 122 0.08 100
IV.LNSS.HHE. 2019-08-11T20:25:45.60 0.3 undecidable manual P 157 0.3265 50 -0.08 96
IV.CSP1.EHZ. 2019-08-11T20:25:45.29 0.3 undecidable manual P 52 0.3085 50 -0.09 96
IV.CESI.HHZ. 2019-08-11T20:25:44.02 0.3 undecidable manual S 14 0.1043 131 0.16 99
IV.NRCA.HNZ. 2019-08-11T20:25:43.25 0.3 undecidable manual P 111 0.1925 115 -0.04 100
IV.FDMO.HHZ. 2019-08-11T20:25:43.45 0.3 undecidable manual P 50 0.2068 114 -0.13 98
IV.MML1.HNZ. 2019-08-11T20:25:43.75 0.3 undecidable manual P 20 0.2221 112 -0.14 97
IV.ASSB.HHZ. 2019-08-11T20:25:43.57 0.3 undecidable manual P 312 0.2068 114 -0.01 100
IV.GAVE.HNZ. 2019-08-11T20:25:43.80 0.3 undecidable manual P 175 0.2122 113 0.1 98
IV.FEMA.HNZ. 2019-08-11T20:25:42.56 0.3 undecidable manual P 66 0.1439 122 0.22 97
IT.MTCL.HGZ. 2019-08-11T20:25:42.25 0.3 undecidable manual P 47 0.1304 125 0.16 99
IV.CESI.HHZ. 2019-08-11T20:25:41.90 0.3 undecidable manual P 14 0.1043 131 0.28 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.3 0.000225 0.26 AML other m 2019-08-11T20:25:44.38
IV.CESI.HHN. ML:1.2 0.0001875 0.28 AML other m 2019-08-11T20:25:44.68
IV.FDMO.HHE. ML:0.7 3.355E-5 0.26 AML other m 2019-08-11T20:25:47.16
IV.ASSB.HHE. ML:0.9 5.26E-5 0.2 AML other m 2019-08-11T20:25:47.36
IV.ASSB.HHN. ML:0.9 5.56E-5 0.54 AML other m 2019-08-11T20:25:47.38
IV.FDMO.HHN. ML:0.8 3.99E-5 0.14 AML other m 2019-08-11T20:25:48.43
IV.EL6.EHE. ML:1 2.4055E-5 0.56 AML other m 2019-08-11T20:25:58.29
IV.EL6.EHN. ML:1 2.48E-5 0.42 AML other m 2019-08-11T20:26:01.70
IV.CSP1.EHE. ML:0.9 3.720571E-5 0.2176 AML other m 2019-08-11T20:25:50.58
IV.CSP1.EHN. ML:0.9 2.928413E-5 0.2944 AML other m 2019-08-11T20:25:50.46
IV.SNTG.HHE. ML:0.4 8.887748E-6 0.0768 AML other m 2019-08-11T20:25:53.54
IV.SNTG.HHN. ML:0.4 9.113028E-6 0.1408 AML other m 2019-08-11T20:25:52.83
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