Earthquake with magnitude of ML 1.7 on date 20-08-2019 and time 09:21:42 (UTC) in region 6 km W Civitella del Tronto (TE)

A magnitude ML 1.7 earthquake occured in region: 6 km W Civitella del Tronto (TE), on

  • 20-08-2019 09:21:42 (UTC)
  • 20-08-2019 11:21:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.76, 13.6 at 22 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
Civitella del Tronto TE 6 5116 5116
Campli TE 8 7209 12325
Folignano AP 8 9241 21566
Valle Castellana TE 9 977 22543
Rocca Santa Maria TE 10 537 23080
Maltignano AP 11 2401 25481
Ascoli Piceno AP 11 49407 74888
Torricella Sicura TE 12 2641 77529
Sant'Egidio alla Vibrata TE 12 9811 87340
Teramo TE 14 54892 142232
Ancarano TE 15 1857 144089
Castel di Lama AP 16 8634 152723
Roccafluvione AP 16 2010 154733
Acquasanta Terme AP 16 2916 157649
Torano Nuovo TE 16 1611 159260
Venarotta AP 17 2066 161326
Cortino TE 17 656 161982
Bellante TE 17 7152 169134
Appignano del Tronto AP 17 1785 170919
Sant'Omero TE 17 5243 176162
Colli del Tronto AP 18 3668 179830
Castorano AP 19 2380 182210
Nereto TE 19 5242 187452
Montorio al Vomano TE 19 8218 195670
Castellalto TE 20 7513 203183
Palmiano AP 20 196 203379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Teramo (54892 inhabitants)
48 Km NE of L'Aquila (69753 inhabitants)
52 Km NW of Montesilvano (53738 inhabitants)
60 Km NW of Pescara (121014 inhabitants)
65 Km NW of Chieti (51815 inhabitants)
77 Km E of Foligno (57155 inhabitants)
81 Km E of Terni (111501 inhabitants)
96 Km S 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 1.7 2019-08-20
09:21:42
42.76 13.6 22 2019-08-20
09:30:03
Sala Sismica INGV-Roma 71645101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 09:21:42 ± 0.14
Latitude 42.76 ± 0.00
Longitude 13.60 ± 0.01
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71645101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 81
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47035
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 71645101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 09:30:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IT.VNF1.HGZ. 2019-08-20T09:22:26.59 3.0 undecidable manual S 3.32 0
IV.LNSS.HHZ. 2019-08-20T09:21:59.28 0.6 undecidable manual S 250 0.4407 107 0.98 35
IV.FDMO.HHZ. 2019-08-20T09:21:59.52 0.6 undecidable manual S 307 0.4703 105 0.4 43
IV.CSP1.EHZ. 2019-08-20T09:21:58.71 0.6 undecidable manual S 319 0.4443 106 0.32 44
IV.VCEL.EHZ. 2019-08-20T09:21:57.83 0.6 undecidable manual S 154 0.402 108 0.64 42
IV.ARVD.HHZ. 2019-08-20T09:21:57.07 3.0 negative manual P -1.94 0
IV.NRCA.HHZ. 2019-08-20T09:21:56.44 0.6 undecidable manual S 282 0.3669 111 0.23 46
IV.MC2.EHZ. 2019-08-20T09:21:55.86 0.6 undecidable manual S 297 0.3408 112 0.37 45
IV.GIGS.HHZ. 2019-08-20T09:21:54.33 0.6 undecidable manual S 184 0.304 115 -0.17 47
IV.CAMP.HHZ. 2019-08-20T09:21:53.68 0.6 undecidable manual S 213 0.2626 120 0.27 47
IV.MMO1.EHZ. 2019-08-20T09:21:52.69 0.6 undecidable manual S 305 0.2473 122 -0.34 47
IV.SMA1.EHZ. 2019-08-20T09:21:52.84 0.6 undecidable manual S 237 0.2338 123 0.17 49
IV.MF5.EHZ. 2019-08-20T09:21:52.93 0.6 undecidable manual S 336 0.2536 121 -0.26 48
IV.OFFI.HHZ. 2019-08-20T09:21:52.02 0.3 undecidable manual S 19 0.1889 130 0.41 69
IV.FDMO.HHZ. 2019-08-20T09:21:51.77 1.0 negative manual P 307 0.4703 105 -0.26 23
IV.CSP1.EHZ. 2019-08-20T09:21:51.26 0.3 undecidable manual P 319 0.4443 106 -0.34 68
IV.LNSS.HHZ. 2019-08-20T09:21:51.76 0.3 undecidable manual P 250 0.4407 107 0.21 69
IV.VCEL.EHZ. 2019-08-20T09:21:51.01 0.6 undecidable manual P 154 0.402 108 0.1 48
IV.TERO.HHZ. 2019-08-20T09:21:50.25 0.3 undecidable manual S 180 0.134 141 -0.22 72
IV.MTRA.EHZ. 2019-08-20T09:21:50.52 0.6 undecidable manual S 270 0.1511 137 -0.3 48
IV.NRCA.HHZ. 2019-08-20T09:21:50.24 0.3 positive manual P 282 0.3669 111 -0.11 72
IV.GIGS.HHZ. 2019-08-20T09:21:49.18 0.3 positive manual P 184 0.304 115 -0.18 71
IV.MC2.EHZ. 2019-08-20T09:21:49.84 0.6 positive manual P 297 0.3408 112 -0.09 49
IV.MF5.EHZ. 2019-08-20T09:21:48.45 0.3 undecidable manual P 336 0.2536 121 -0.16 73
IV.TRTR.HHZ. 2019-08-20T09:21:48.46 0.1 negative manual P 77 0.2338 123 0.15 97
IV.MMO1.EHZ. 2019-08-20T09:21:48.19 0.1 positive manual P 305 0.2473 122 -0.32 94
IV.SMA1.EHZ. 2019-08-20T09:21:48.31 0.1 positive manual P 237 0.2338 123 0 100
IV.CAMP.HHZ. 2019-08-20T09:21:48.77 0.1 positive manual P 213 0.2626 120 0.04 99
IV.OFFI.HHZ. 2019-08-20T09:21:47.58 0.3 undecidable manual P 19 0.1889 130 -0.11 74
IV.MTRA.EHZ. 2019-08-20T09:21:46.95 0.1 undecidable manual P 270 0.1511 137 -0.29 96
IV.TERO.HHZ. 2019-08-20T09:21:46.86 0.1 positive manual P 180 0.134 141 -0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHE. ML:2.2 0.00103843565 0.0768 AML other m 2019-08-20T09:21:50.30
IV.TERO.HHN. ML:2.2 0.00094283605 0.16 AML other m 2019-08-20T09:21:50.30
IV.TERO.HNE. ML:2 0.00059219295 1.2608 AML other m 2019-08-20T09:21:47.81
IV.TERO.HNN. ML:1.6 0.00026886635 0.1024 AML other m 2019-08-20T09:21:50.30
IV.MTRA.EHE. ML:1.8 0.0003588019 0.1152 AML other m 2019-08-20T09:21:50.88
IV.MTRA.EHN. ML:1.7 0.0002709983 0.096 AML other m 2019-08-20T09:21:51.05
IV.MTRA.HNE. ML:1.8 0.00035220155 0.128 AML other m 2019-08-20T09:21:50.88
IV.MTRA.HNN. ML:1.7 0.0002845883 0.0896 AML other m 2019-08-20T09:21:51.05
IV.OFFI.HHE. ML:2 0.00048092825 0.256 AML other m 2019-08-20T09:21:52.43
IV.OFFI.HHN. ML:2 0.00049981065 0.2624 AML other m 2019-08-20T09:21:52.59
IV.SMA1.EHE. ML:1.6 0.0001558684 0.2624 AML other m 2019-08-20T09:21:53.70
IV.SMA1.EHN. ML:1.5 0.00014289425 0.1152 AML other m 2019-08-20T09:21:52.98
IV.MF5.EHE. ML:1.5 0.00012624177 0.16 AML other m 2019-08-20T09:21:53.27
IV.MF5.EHN. ML:1.5 0.00012288415 0.32 AML other m 2019-08-20T09:21:56.04
IV.TRTR.HHE. ML:2 0.0004682135 0.3648 AML other m 2019-08-20T09:22:03.39
IV.TRTR.HHN. ML:2 0.00046748425 0.4352 AML other m 2019-08-20T09:21:58.90
IV.CAMP.HHE. ML:1.2 6.4617515E-5 0.2816 AML other m 2019-08-20T09:21:54.57
IV.CAMP.HHN. ML:1.2 6.56036E-5 0.2432 AML other m 2019-08-20T09:21:54.39
IV.GIGS.HHE. ML:1 4.0856935E-5 0.16 AML other m 2019-08-20T09:21:54.67
IV.GIGS.HHN. ML:1.2 4.880001E-5 0.2624 AML other m 2019-08-20T09:21:54.51
IV.NRCA.HNE. ML:2 0.0003185713 0.128 AML other m 2019-08-20T09:21:56.87
IV.NRCA.HNN. ML:2.1 0.00035556945 0.1408 AML other m 2019-08-20T09:21:56.80
IV.NRCA.HHE. ML:2 0.0003258441 0.1216 AML other m 2019-08-20T09:21:56.87
IV.NRCA.HHN. ML:2.1 0.00039476085 0.1216 AML other m 2019-08-20T09:21:56.81
IV.VCEL.EHE. ML:1.3 5.3963525E-5 0.1344 AML other m 2019-08-20T09:21:59.54
IV.VCEL.EHN. ML:1.3 5.549954E-5 0.3968 AML other m 2019-08-20T09:22:07.48
IV.CSP1.EHE. ML:1.2 3.261691E-5 0.2048 AML other m 2019-08-20T09:22:03.24
IV.CSP1.EHN. ML:1.1 3.2109805E-5 0.2368 AML other m 2019-08-20T09:22:05.01
IV.LNSS.HNE. ML:1.8 0.00013921592 0.352 AML other m 2019-08-20T09:22:00.38
IV.LNSS.HNN. ML:1.7 0.000132241 0.5504 AML other m 2019-08-20T09:22:09.04
IV.LNSS.HHE. ML:1.6 9.523226E-5 0.1408 AML other m 2019-08-20T09:22:00.20
IV.LNSS.HHN. ML:1.4 5.796804E-5 0.2368 AML other m 2019-08-20T09:22:00.78
IV.FDMO.HHE. ML:1.4 5.272759E-5 0.16 AML other m 2019-08-20T09:22:00.09
IV.FDMO.HHN. ML:1.5 7.677986E-5 0.16 AML other m 2019-08-20T09:21:59.76
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