Earthquake with magnitude of ML 1.3 on date 23-08-2019 and time 12:07:00 (Italy) in region 1 km SW Roccafluvione (AP)

A magnitude ML 1.3 earthquake occured in region: 1 km SW Roccafluvione (AP), on

  • 23-08-2019 10:07:00 (UTC)
  • 23-08-2019 12:07:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.85, 13.47 at 19 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
Roccafluvione AP 1 2010 2010
Venarotta AP 4 2066 4076
Palmiano AP 6 196 4272
Ascoli Piceno AP 9 49407 53679
Acquasanta Terme AP 10 2916 56595
Montegallo AP 11 523 57118
Montemonaco AP 13 604 57722
Force AP 13 1354 59076
Comunanza AP 13 3166 62242
Valle Castellana TE 13 977 63219
Folignano AP 14 9241 72460
Rotella AP 14 906 73366
Montefortino FM 15 1178 74544
Montefalcone Appennino FM 15 424 74968
Castignano AP 16 2796 77764
Arquata del Tronto AP 16 1178 78942
Montedinove AP 17 488 79430
Amandola FM 17 3629 83059
Appignano del Tronto AP 17 1785 84844
Smerillo FM 17 365 85209
Maltignano AP 18 2401 87610
Civitella del Tronto TE 18 5116 92726
Rocca Santa Maria TE 19 537 93263
Santa Vittoria in Matenano FM 19 1330 94593
Montalto delle Marche AP 19 2122 96715
Montelparo FM 20 778 97493

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Teramo (54892 inhabitants)
56 Km N of L'Aquila (69753 inhabitants)
63 Km E of Foligno (57155 inhabitants)
67 Km NW of Montesilvano (53738 inhabitants)
74 Km E of Terni (111501 inhabitants)
75 Km NW of Pescara (121014 inhabitants)
80 Km NW of Chieti (51815 inhabitants)
85 Km S of Ancona (100861 inhabitants)
92 Km E of Perugia (166134 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 2019-08-23
10:07:00
42.85 13.47 19 2019-08-23
10:18:02
Sala Sismica INGV-Roma 71736261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 10:07:00 ± 0.13
Latitude 42.85 ± 0.00
Longitude 13.47 ± 0.01
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71736261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 784
Semi-minor axis of confidence ellipse (meter) 359
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 243
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33365
Number of stations at which the event was observed 22
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 12
Type of magnitude ML
Reference to an origin 71736261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-23 10:18:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
AC.VLO.HHZ. 2019-08-23T10:08:14.71 3.0 negative manual Pn -2.9 0
IV.ILLI.HHZ. 2019-08-23T10:08:12.93 3.0 positive manual Pn 3.26 0
IV.DGI.HHZ. 2019-08-23T10:08:11.99 3.0 undecidable manual Pg 12.38 0
GU.RNCA.HHZ. 2019-08-23T10:08:02.61 3.0 undecidable manual Pn 5.9 0
SL.LJU.BHZ. 2019-08-23T10:07:55.42 3.0 undecidable manual Pg 3.5 0
CR.STON.BHZ. 2019-08-23T10:07:51.04 3.0 undecidable manual Pn 0.9 0
IV.APEC.HHZ. 2019-08-23T10:07:35.86 3.0 undecidable manual S -0.39 0
IV.VVLD.HHZ. 2019-08-23T10:07:32.39 3.0 undecidable manual S -3.79 0
IT.VNF1.HGZ. 2019-08-23T10:07:28.00 3.0 positive manual Pg 0.94 0
IV.TRIV.HHZ. 2019-08-23T10:07:25.32 3.0 positive manual P -0.63 0
IV.T0110.HHZ. 2019-08-23T10:07:22.47 3.0 undecidable manual S -3.19 0
IV.PE3.EHZ. 2019-08-23T10:07:20.68 3.0 undecidable manual P -1.03 0
IV.CSP1.EHZ. 2019-08-23T10:07:12.28 0.1 undecidable manual S 321 0.3076 109 0.08 95
IV.FDMO.HHZ. 2019-08-23T10:07:12.81 0.1 undecidable manual S 304 0.3336 107 -0.14 94
IV.SMA1.EHZ. 2019-08-23T10:07:10.34 0.1 undecidable manual S 204 0.241 115 -0.03 97
IV.NRCA.HHZ. 2019-08-23T10:07:10.80 0.1 undecidable manual S 266 0.259 113 -0.06 97
IV.MC2.EHZ. 2019-08-23T10:07:09.98 0.1 undecidable manual S 287 0.2122 119 0.36 91
IV.GIGS.HHZ. 2019-08-23T10:07:08.78 3.0 undecidable manual P -1.27 0
IV.VCEL.EHZ. 2019-08-23T10:07:08.89 3.0 undecidable manual P -3.66 0
IV.MMO1.EHZ. 2019-08-23T10:07:07.10 0.1 undecidable manual S 295 0.1133 140 -0.24 96
IV.MTRA.EHZ. 2019-08-23T10:07:07.22 0.1 undecidable manual S 209 0.1079 142 -0.01 100
IV.CSP1.EHZ. 2019-08-23T10:07:07.09 0.1 negative manual P 321 0.3076 109 -0.08 95
IV.FDMO.HHZ. 2019-08-23T10:07:07.41 0.6 negative manual P 304 0.3336 107 -0.19 46
IV.TERO.HHZ. 2019-08-23T10:07:06.59 3.0 undecidable manual P -0.67 0
IV.SMA1.EHZ. 2019-08-23T10:07:06.22 0.1 positive manual P 204 0.241 115 0.11 96
IV.NRCA.HHZ. 2019-08-23T10:07:06.36 0.1 undecidable manual P 266 0.259 113 -0.04 97
IV.MC2.EHZ. 2019-08-23T10:07:05.78 0.3 positive manual P 287 0.2122 119 0.11 72
IV.MTRA.EHZ. 2019-08-23T10:07:04.38 0.1 positive manual P 209 0.1079 142 0.08 99
IV.MMO1.EHZ. 2019-08-23T10:07:04.22 1.0 undecidable manual P 295 0.1133 140 -0.14 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:2 0.0007875 0.1 AML other m 2019-08-23T10:07:07.33
IV.MTRA.EHE. ML:2 0.00071 0.08 AML other m 2019-08-23T10:07:07.32
IV.SMA1.EHE. ML:1.3 9.335E-5 0.4 AML other m 2019-08-23T10:07:10.94
IV.NRCA.HHE. ML:1.8 0.000299 0.1 AML other m 2019-08-23T10:07:11.19
IV.TERO.HHN. ML:1 4.47E-5 0.48 AML other m 2019-08-23T10:07:11.51
IV.TERO.HHE. ML:1 4.12E-5 0.8 AML other m 2019-08-23T10:07:11.12
IV.NRCA.HHN. ML:2 0.000462 0.7 AML other m 2019-08-23T10:07:11.22
IV.SMA1.EHN. ML:1.2 8.13E-5 0.24 AML other m 2019-08-23T10:07:12.13
IV.CSP1.EHN. ML:1.3 8.23E-5 0.3 AML other m 2019-08-23T10:07:12.42
IV.CSP1.EHE. ML:1.3 7.485E-5 0.3 AML other m 2019-08-23T10:07:12.60
IV.FDMO.HHE. ML:1 3.725E-5 1.8 AML other m 2019-08-23T10:07:12.97
IV.FDMO.HHN. ML:0.9 2.71E-5 1.68 AML other m 2019-08-23T10:07:14.84
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