Earthquake with magnitude of ML 1.3 on date 19-08-2019 and time 07:21:49 (Italy) in region 6 km E Trevi (PG)

A magnitude ML 1.3 earthquake occured in region: 6 km E Trevi (PG), on

  • 19-08-2019 05:21:49 (UTC)
  • 19-08-2019 07:21:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9, 12.81 at 18 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
Trevi PG 6 8469 8469
Sellano PG 10 1079 9548
Campello sul Clitunno PG 10 2442 11990
Foligno PG 11 57155 69145
Cerreto di Spoleto PG 13 1075 70220
Montefalco PG 13 5679 75899
Castel Ritaldi PG 14 3278 79177
Spello PG 15 8645 87822
Vallo di Nera PG 15 364 88186
Bevagna PG 17 5081 93267
Valtopina PG 18 1398 94665
Monte Cavallo MC 19 145 94810
Preci PG 19 724 95534
Sant'Anatolia di Narco PG 19 564 96098
Spoleto PG 20 38218 134316

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
41 Km SE of Perugia (166134 inhabitants)
78 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
79 Km NE of Viterbo (67173 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
98 Km SE of Arezzo (99543 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 1.3 2019-08-19
05:21:49
42.9 12.81 18 2019-08-19
05:27:22
Sala Sismica INGV-Roma 71617271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-19 05:21:49 ± 0.32
Latitude 42.90 ± 0.01
Longitude 12.81 ± 0.01
Depth (km) 18 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71617271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1300
Semi-minor axis of confidence ellipse (meter) 396
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 17
Circular confidence region, given by single value of horizontal uncertainty (meter) 1300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.34444
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 71617271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-19 05:27:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2019-08-19T05:22:35.60 3.0 undecidable manual S 0.55 0
IV.CSP1.EHZ. 2019-08-19T05:22:03.24 0.6 undecidable manual S 57 0.3426 105 0.44 50
IV.CESX.HHE. 2019-08-19T05:22:03.29 0.6 undecidable manual S 209 0.3381 105 0.62 45
IV.LNSS.HHZ. 2019-08-19T05:22:02.91 0.3 undecidable manual S 151 0.3444 105 0.08 79
IV.NRCA.HHZ. 2019-08-19T05:21:59.32 0.6 undecidable manual S 108 0.232 115 -0.39 51
IV.EL6.EHZ. 2019-08-19T05:21:59.71 3.0 undecidable manual P -0.85 0
IT.GNU.HGE. 2019-08-19T05:21:59.51 0.3 undecidable manual S 241 0.2032 119 0.56 72
IV.FDMO.HHZ. 2019-08-19T05:21:59.74 0.6 undecidable manual S 57 0.241 114 -0.2 52
IV.SNTG.HHZ. 2019-08-19T05:21:58.33 3.0 undecidable manual P -0.39 0
IV.LNSS.HHZ. 2019-08-19T05:21:57.67 0.6 undecidable manual P 151 0.3444 105 0.29 51
IV.CSP1.EHZ. 2019-08-19T05:21:57.82 0.6 negative manual P 57 0.3426 105 0.46 50
IV.CESI.HHZ. 2019-08-19T05:21:56.72 0.6 undecidable manual S 34 0.1214 137 -0.3 52
IV.CESX.HHE. 2019-08-19T05:21:56.81 0.1 undecidable manual P 209 0.3381 105 -0.47 100
IV.FDMO.HHZ. 2019-08-19T05:21:55.92 1.0 undecidable manual P 57 0.241 114 0.21 27
IV.NRCA.HHZ. 2019-08-19T05:21:55.68 1.0 undecidable manual P 108 0.232 115 0.11 27
IT.GNU.HGE. 2019-08-19T05:21:54.26 0.1 undecidable manual P 241 0.2032 119 -0.87 88
IV.CESI.HHZ. 2019-08-19T05:21:54.33 0.3 negative manual P 34 0.1214 137 0.31 81
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.7 0.0003798648 0.1792 AML other m 2019-08-19T05:21:56.86
IV.CESI.HHN. ML:1.7 0.00039887635 0.1792 AML other m 2019-08-19T05:21:56.95
IV.CESI.HNE. ML:1.7 0.0003296477 0.1696 AML other m 2019-08-19T05:21:56.86
IV.CESI.HNN. ML:1.8 0.00042562565 0.1888 AML other m 2019-08-19T05:21:56.95
IV.NRCA.HHE. ML:1.1 5.976118E-5 0.1376 AML other m 2019-08-19T05:22:01.44
IV.NRCA.HHN. ML:1.1 6.5093655E-5 0.08 AML other m 2019-08-19T05:22:00.82
IV.NRCA.HNE. ML:1.6 0.0001943397275 0.4096 AML other m 2019-08-19T05:22:03.21
IV.NRCA.HNN. ML:1.5 0.00014003815 0.9504 AML other m 2019-08-19T05:22:08.19
IV.FDMO.HHE. ML:0.9 4.0385395E-5 0.1824 AML other m 2019-08-19T05:22:00.24
IV.FDMO.HHN. ML:0.9 4.1218705E-5 0.0992 AML other m 2019-08-19T05:22:00.78
IV.LNSS.HHE. ML:1.2 5.9483335E-5 0.1216 AML other m 2019-08-19T05:22:03.96
IV.LNSS.HHN. ML:1.1 4.4249975E-5 0.1216 AML other m 2019-08-19T05:22:03.80
IV.LNSS.HNE. ML:1.6 0.00012706674 0.8704 AML other m 2019-08-19T05:22:13.16
IV.LNSS.HNN. ML:1.7 0.000181778775 1.0272 AML other m 2019-08-19T05:21:57.11
IV.CSP1.EHE. ML:0.9 2.52090345E-5 0.1792 AML other m 2019-08-19T05:22:03.87
IV.CSP1.EHN. ML:0.9 2.722006E-5 0.3008 AML other m 2019-08-19T05:22:03.30
IV.SNTG.HHE. ML:0.7 1.253265E-5 0.16 AML other m 2019-08-19T05:22:06.06
IV.SNTG.HHN. ML:0.5 1.156748E-5 0.08 AML other m 2019-08-19T05:22:05.66
IV.SNTG.HNE. ML:1.6 0.00013388155 0.8992 AML other m 2019-08-19T05:22:06.35
IV.SNTG.HNN. ML:1.7 0.0001488361 0.7584 AML other m 2019-08-19T05:22:02.55
IV.EL6.EHE. ML:1.2 3.28100585E-5 0.2208 AML other m 2019-08-19T05:22:08.35
IV.EL6.EHN. ML:0.9 2.056691E-5 0.2016 AML other m 2019-08-19T05:22:08.59
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