Earthquake with magnitude of ML 0.3 on date 13-10-2019 and time 23:04:23 (UTC) in region 7 km NW Arquata del Tronto (AP)

A magnitude ML 0.3 earthquake occured in region: 7 km NW Arquata del Tronto (AP), on

  • 13-10-2019 23:04:23 (UTC)
  • 14-10-2019 01:04:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.25 at 14 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
Arquata del Tronto AP 7 1178 1178
Montegallo AP 7 523 1701
Montemonaco AP 10 604 2305
Castelsantangelo sul Nera MC 11 281 2586
Norcia PG 13 4957 7543
Accumoli RI 15 667 8210
Acquasanta Terme AP 15 2916 11126
Montefortino FM 15 1178 12304
Ussita MC 16 444 12748
Visso MC 17 1107 13855
Preci PG 18 724 14579
Bolognola MC 19 142 14721
Roccafluvione AP 19 2010 16731
Palmiano AP 19 196 16927
Amandola FM 19 3629 20556
Comunanza AP 20 3166 23722

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
54 Km N of L'Aquila (69753 inhabitants)
57 Km NE of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
91 Km S of Ancona (100861 inhabitants)
92 Km NW of Chieti (51815 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 0.3 2019-10-13
23:04:23
42.83 13.25 14 2019-10-13
23:13:53
Sala Sismica INGV-Roma 73240551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-13 23:04:23 ± 0.09
Latitude 42.83 ± 0.00
Longitude 13.25 ± 0.01
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73240551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 553
Semi-minor axis of confidence ellipse (meter) 443
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 0.2662
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 73240551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-13 23:13:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2019-10-13T23:04:34.18 0.1 undecidable manual S 353 0.2662 99 -0.03 96
IV.FDMO.HHZ. 2019-10-13T23:04:33.24 0.1 undecidable manual S 331 0.2401 100 -0.19 93
IV.MF5.EHZ. 2019-10-13T23:04:33.49 0.1 undecidable manual S 44 0.223 102 0.54 86
IV.SMA1.EHZ. 2019-10-13T23:04:32.23 0.3 undecidable manual S 162 0.2068 104 -0.25 71
IV.T1299.HNZ. 2019-10-13T23:04:32.30 0.1 undecidable manual S 173 0.1943 105 0.18 95
IV.FDMO.HHZ. 2019-10-13T23:04:29.17 0.1 undecidable manual P 331 0.2401 100 -0.19 94
IV.NRCA.HHZ. 2019-10-13T23:04:29.58 0.1 undecidable manual S 274 0.098 131 0.01 100
IV.MF5.EHZ. 2019-10-13T23:04:29.19 0.1 undecidable manual P 44 0.223 102 0.1 96
IV.CSP1.EHZ. 2019-10-13T23:04:29.75 0.1 undecidable manual P 353 0.2662 99 -0.06 96
IV.MMO1.EHZ. 2019-10-13T23:04:29.18 0.1 undecidable manual S 39 0.0926 133 -0.27 96
IV.MC2.EHZ. 2019-10-13T23:04:29.72 0.1 undecidable manual S 333 0.0944 132 0.22 97
IV.SMA1.EHZ. 2019-10-13T23:04:28.56 0.1 undecidable manual P 162 0.2068 104 -0.25 94
IV.T1299.HNZ. 2019-10-13T23:04:28.56 0.1 undecidable manual P 173 0.1943 105 -0.04 98
IV.MC2.EHZ. 2019-10-13T23:04:27.21 0.1 undecidable manual P 333 0.0944 132 0.12 99
IV.NRCA.HHZ. 2019-10-13T23:04:27.31 0.1 undecidable manual P 274 0.098 131 0.18 98
IV.MMO1.EHZ. 2019-10-13T23:04:26.93 0.1 undecidable manual P 39 0.0926 133 -0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.4 2.495E-5 0.6 AML other m 2019-10-13T23:04:30.74
IV.NRCA.HHE. ML:0.4 2.675E-5 0.08 AML other m 2019-10-13T23:04:31.00
IV.FDMO.HHE. ML:0 5.722539E-6 0.2304 AML other m 2019-10-13T23:04:33.62
IV.FDMO.HHN. ML:0 5.5460995E-6 0.1536 AML other m 2019-10-13T23:04:33.56
IV.CSP1.EHE. ML:0.5 1.53500945E-5 1.0752 AML other m 2019-10-13T23:04:34.34
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download