Earthquake with magnitude of ML 1.5 on date 23-08-2019 and time 12:10:46 (Italy) in region 1 km W Roccafluvione (AP)

A magnitude ML 1.5 earthquake occured in region: 1 km W Roccafluvione (AP), on

  • 23-08-2019 10:10:46 (UTC)
  • 23-08-2019 12:10:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.46 at 11 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 2 2010 2010
Venarotta AP 4 2066 4076
Palmiano AP 5 196 4272
Ascoli Piceno AP 10 49407 53679
Montegallo AP 10 523 54202
Acquasanta Terme AP 11 2916 57118
Comunanza AP 12 3166 60284
Montemonaco AP 12 604 60888
Force AP 12 1354 62242
Montefortino FM 13 1178 63420
Rotella AP 14 906 64326
Valle Castellana TE 14 977 65303
Montefalcone Appennino FM 14 424 65727
Folignano AP 15 9241 74968
Amandola FM 16 3629 78597
Castignano AP 16 2796 81393
Arquata del Tronto AP 16 1178 82571
Smerillo FM 16 365 82936
Montedinove AP 16 488 83424
Appignano del Tronto AP 18 1785 85209
Santa Vittoria in Matenano FM 18 1330 86539
Montalto delle Marche AP 19 2122 88661
Montelparo FM 19 778 89439
Maltignano AP 19 2401 91840
Monte San Martino MC 19 765 92605
Civitella del Tronto TE 20 5116 97721
Rocca Santa Maria TE 20 537 98258

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Teramo (54892 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
62 Km E of Foligno (57155 inhabitants)
68 Km NW of Montesilvano (53738 inhabitants)
74 Km E of Terni (111501 inhabitants)
76 Km NW of Pescara (121014 inhabitants)
81 Km NW of Chieti (51815 inhabitants)
85 Km S of Ancona (100861 inhabitants)
91 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 1.5 2019-08-23
10:10:46
42.86 13.46 11 2019-08-23
10:23:06
Sala Sismica INGV-Roma 71736361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 10:10:46 ± 0.3
Latitude 42.86 ± 0.01
Longitude 13.46 ± 0.02
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71736361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1950
Semi-minor axis of confidence ellipse (meter) 1220
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 1950
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32376
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0
Num. used stations 6
Type of magnitude ML
Reference to an origin 71736361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-23 10:23:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2019-08-23T10:12:14.87 3.0 undecidable manual Sn 4.42 0
IV.MNTV.HNZ. 2019-08-23T10:12:08.55 3.0 undecidable manual Sn -1.01 0
IV.SBPO.HNZ. 2019-08-23T10:12:06.38 3.0 undecidable manual Sn 0.12 0
IV.HAGA.HHZ. 2019-08-23T10:11:56.50 3.0 undecidable manual Pn -1.1 0
IV.CPTP.HHZ. 2019-08-23T10:11:55.96 3.0 positive manual Pn 0.71 0
ST.CARE.EHZ. 2019-08-23T10:11:50.98 3.0 undecidable manual Pn 8.36 0
IV.MTMR.HNZ. 2019-08-23T10:11:42.93 3.0 undecidable manual Sg 9.65 0
IV.PTRJ.HNZ. 2019-08-23T10:11:21.20 3.0 undecidable manual S 0.59 0
IV.GATE.HHZ. 2019-08-23T10:11:19.45 3.0 undecidable manual Sn 0.39 0
IV.PZUN.HHZ. 2019-08-23T10:11:14.31 3.0 undecidable manual Pn -0.91 0
IV.FDMO.HHZ. 2019-08-23T10:10:58.94 0.6 undecidable manual S 303 0.3238 50 0.17 49
IV.CSP1.EHZ. 2019-08-23T10:10:58.28 0.6 undecidable manual S 322 0.2977 50 0.31 48
IV.NRCA.HHZ. 2019-08-23T10:10:56.69 0.3 undecidable manual S 264 0.2536 50 0.01 77
IV.GUMA.HHE. 2019-08-23T10:10:56.40 0.3 undecidable manual S 336 0.2221 50 0.64 66
IV.CSP1.EHZ. 2019-08-23T10:10:52.99 0.3 negative manual P 322 0.2977 50 -0.17 74
IV.NRCA.HHZ. 2019-08-23T10:10:52.25 0.1 undecidable manual P 264 0.2536 50 -0.16 100
IV.FDMO.HHZ. 2019-08-23T10:10:52.86 0.3 undecidable manual P 303 0.3238 50 -0.76 62
IV.GUMA.HHE. 2019-08-23T10:10:51.28 0.6 undecidable manual P 336 0.2221 50 -0.6 45
IV.MTRA.EHZ. 2019-08-23T10:10:50.25 0.1 undecidable manual P 204 0.1124 130 0.39 98
IV.FAGN.HHZ. 2019-08-23T10:10:50.07 3.0 negative manual P -0.24 0
IV.MF5.EHZ. 2019-08-23T10:10:50.13 0.3 undecidable manual P 0 0.1286 126 -0.01 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.5 0.0003405 0.1 AML other m 2019-08-23T10:10:53.26
IV.MTRA.EHE. ML:1.4 0.000268 0.08 AML other m 2019-08-23T10:10:53.23
IV.MTRA.HNE. ML:1.4 0.000287 0.08 AML other m 2019-08-23T10:10:53.23
IV.MTRA.HNN. ML:1.5 0.0003245 0.22 AML other m 2019-08-23T10:10:53.25
IV.NRCA.HHE. ML:1.5 0.00015 0.14 AML other m 2019-08-23T10:10:57.03
IV.NRCA.HHN. ML:1.5 0.000148 0.7 AML other m 2019-08-23T10:10:57.12
IV.PTRJ.HNE. ML:3.4 0.0007545 0.62 AML other m 2019-08-23T10:11:26.69
IV.PTRJ.HNN. ML:3.3 0.000698 0.56 AML other m 2019-08-23T10:11:26.72
IV.MNTV.HNN. ML:3.8 0.000697 0.54 AML other m 2019-08-23T10:11:52.48
IV.MNTV.HNE. ML:3.9 0.000717 0.34 AML other m 2019-08-23T10:11:55.71
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