Earthquake with magnitude of ML 1.0 on date 20-08-2019 and time 07:15:03 (Italy) in region Fagnano Alto (AQ)

A magnitude ML 1.0 earthquake occured in region: Fagnano Alto (AQ), on

  • 20-08-2019 05:15:03 (UTC)
  • 20-08-2019 07:15:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.26, 13.58 at 7 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
Fagnano Alto AQ 1 418 418
Prata d'Ansidonia AQ 3 496 914
Villa Sant'Angelo AQ 4 424 1338
San Demetrio ne' Vestini AQ 4 1854 3192
Fontecchio AQ 4 369 3561
Sant'Eusanio Forconese AQ 6 394 3955
San Pio delle Camere AQ 7 661 4616
Rocca di Mezzo AQ 7 1526 6142
Rocca di Cambio AQ 8 533 6675
Poggio Picenze AQ 8 1136 7811
Tione degli Abruzzi AQ 8 310 8121
Barisciano AQ 8 1828 9949
Caporciano AQ 8 230 10179
Fossa AQ 8 721 10900
Ocre AQ 9 1167 12067
Carapelle Calvisio AQ 10 87 12154
Castelvecchio Calvisio AQ 11 153 12307
Santo Stefano di Sessanio AQ 11 111 12418
Calascio AQ 12 137 12555
Navelli AQ 13 554 13109
Secinaro AQ 14 359 13468
Ovindoli AQ 15 1227 14695
Acciano AQ 15 327 15022
Capestrano AQ 16 884 15906
Ofena AQ 17 506 16412
Castel del Monte AQ 17 413 16825
Collepietro AQ 17 237 17062
Gagliano Aterno AQ 18 254 17316
Molina Aterno AQ 18 386 17702
L'Aquila AQ 18 69753 87455
San Benedetto in Perillis AQ 18 113 87568
Villa Santa Lucia degli Abruzzi AQ 19 123 87691
Castelvecchio Subequo AQ 19 982 88673
Celano AQ 19 11017 99690
Aielli AQ 20 1475 101165

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SE of L'Aquila (69753 inhabitants)
46 Km S of Teramo (54892 inhabitants)
50 Km W of Chieti (51815 inhabitants)
55 Km SW of Montesilvano (53738 inhabitants)
57 Km W of Pescara (121014 inhabitants)
72 Km E of Tivoli (56533 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
83 Km E of Terni (111501 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
99 Km E of Roma (2864731 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 1.0 2019-08-20
05:15:03
42.26 13.58 7 2019-08-20
05:19:39
Sala Sismica INGV-Roma 71641071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 05:15:03 ± 0.16
Latitude 42.26 ± 0.01
Longitude 13.58 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71641071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 728
Semi-minor axis of confidence ellipse (meter) 539
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
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 15
Number of defining phases 10
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) 0.34624
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 71641071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 05:19:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IT.ORP.HGZ. 2019-08-20T05:15:55.28 3.0 undecidable manual Sg -0.28 0
IV.PE3.EHZ. 2019-08-20T05:15:30.15 3.0 positive manual Pn -2.42 0
IV.SGG.HHZ. 2019-08-20T05:15:24.57 3.0 undecidable manual P 0.32 0
IV.INTR.HHZ. 2019-08-20T05:15:16.61 0.6 undecidable manual S 135 0.3462 100 -0.01 47
IV.FIAM.HHZ. 2019-08-20T05:15:16.55 0.6 undecidable manual S 272 0.3408 100 0.16 46
IV.SMA1.EHZ. 2019-08-20T05:15:11.75 3.0 undecidable manual P -0.12 0
IV.INTR.HHZ. 2019-08-20T05:15:10.42 0.3 positive manual P 135 0.3462 100 -0.48 64
IV.FIAM.HHZ. 2019-08-20T05:15:10.86 0.1 undecidable manual P 272 0.3408 100 0.09 92
IV.GIGS.HHZ. 2019-08-20T05:15:10.72 0.6 undecidable manual S 359 0.1943 107 -0.19 47
IV.T0110.HHZ. 2019-08-20T05:15:09.88 0.6 undecidable manual S 101 0.1502 111 0.58 43
IV.VCEL.EHZ. 2019-08-20T05:15:08.89 3.0 positive manual P -0.42 0
IV.GIGS.HHZ. 2019-08-20T05:15:07.69 1.0 undecidable manual P 359 0.1943 107 0.09 24
IV.T0110.HHZ. 2019-08-20T05:15:06.75 0.6 negative manual P 101 0.1502 111 0.08 48
IV.FAGN.HHZ. 2019-08-20T05:15:05.24 0.6 undecidable manual S 35 0.0081 172 -0.15 49
IV.FAGN.HHZ. 2019-08-20T05:15:04.42 0.1 positive manual P 35 0.0081 172 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0110.HHN. ML:1.5 0.00029 0.3 AML other m 2019-08-20T05:15:10.37
IV.GIGS.HHE. ML:0.3 1.61E-5 1.64 AML other m 2019-08-20T05:15:11.99
IV.VCEL.EHE. ML:1.3 0.00011 0.3 AML other m 2019-08-20T05:15:14.28
IV.T0110.HHE. ML:1.3 0.0001995 0.34 AML other m 2019-08-20T05:15:14.69
IV.VCEL.EHN. ML:1.2 9.74E-5 1.16 AML other m 2019-08-20T05:15:14.32
IV.GIGS.HHN. ML:0.6 2.82E-5 0.58 AML other m 2019-08-20T05:15:17.42
IV.FIAM.HHN. ML:0.6 1.575E-5 0.78 AML other m 2019-08-20T05:15:19.58
IV.SMA1.EHE. ML:1 2.9E-5 0.32 AML other m 2019-08-20T05:15:20.23
IV.FIAM.HHE. ML:0.6 1.445E-5 1.58 AML other m 2019-08-20T05:15:21.95
IV.SMA1.EHN. ML:1 2.82E-5 0.44 AML other m 2019-08-20T05:15:23.62
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