Earthquake with magnitude of ML 1.6 on date 23-08-2019 and time 05:12:07 (Italy) in region 4 km SW Roccafluvione (AP)

A magnitude ML 1.6 earthquake occured in region: 4 km SW Roccafluvione (AP), on

  • 23-08-2019 03:12:07 (UTC)
  • 23-08-2019 05:12:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.84, 13.44 at 18 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 4 2010 2010
Venarotta AP 6 2066 4076
Palmiano AP 7 196 4272
Acquasanta Terme AP 8 2916 7188
Montegallo AP 9 523 7711
Montemonaco AP 11 604 8315
Ascoli Piceno AP 11 49407 57722
Valle Castellana TE 13 977 58699
Comunanza AP 13 3166 61865
Arquata del Tronto AP 14 1178 63043
Montefortino FM 14 1178 64221
Force AP 14 1354 65575
Folignano AP 16 9241 74816
Rotella AP 16 906 75722
Montefalcone Appennino FM 17 424 76146
Amandola FM 17 3629 79775
Smerillo FM 18 365 80140
Castignano AP 19 2796 82936
Rocca Santa Maria TE 19 537 83473
Montedinove AP 19 488 83961
Appignano del Tronto AP 20 1785 85746

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Teramo (54892 inhabitants)
55 Km N of L'Aquila (69753 inhabitants)
61 Km E of Foligno (57155 inhabitants)
69 Km NW of Montesilvano (53738 inhabitants)
72 Km E of Terni (111501 inhabitants)
76 Km NW of Pescara (121014 inhabitants)
81 Km NW of Chieti (51815 inhabitants)
87 Km S of Ancona (100861 inhabitants)
90 Km E of Perugia (166134 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.6 2019-08-23
03:12:07
42.84 13.44 18 2019-11-13
14:31:04
Bollettino Sismico Italiano INGV 73016381
Reviewed
Rev100
ML 1.8 2019-08-23
03:12:07
42.84 13.44 17 2019-08-23
03:27:45
Sala Sismica INGV-Roma 71722361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 03:12:07 ± 0.09
Latitude 42.84 ± 0.00
Longitude 13.44 ± 0.00
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73016381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 54
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67719
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 73016381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-03 09:20:40

ML:1.8

Field Value
Value 1.8
Uncertainty 0.5
Num. used stations 22
Type of magnitude ML
Reference to an origin 71722361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-23 03:27:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MODR.HHZ. 2019-08-23T03:12:56.72 3.0 undecidable manual Sn -3.02 0
IV.VIVA.HHZ. 2019-08-23T03:12:46.90 3.0 undecidable manual S 0.16 0
IV.LRP.EHZ. 2019-08-23T03:12:43.90 3.0 undecidable manual S -2.95 0
IV.ATPI.EHZ. 2019-08-23T03:12:41.21 3.0 undecidable manual S 0.39 0
IV.ATPI.EHZ. 2019-08-23T03:12:27.23 3.0 positive manual P 1.1 0
IV.SNTG.HHZ. 2019-08-23T03:12:26.25 0.6 undecidable manual S 319 0.5504 98 0.29 43
IV.EL6.EHZ. 2019-08-23T03:12:26.20 0.6 undecidable manual S 333 0.5459 98 0.37 42
IV.RM33.EHE. 2019-08-23T03:12:21.40 0.3 undecidable manual S 206 0.3714 103 0.69 61
IV.LNSS.HHZ. 2019-08-23T03:12:21.70 0.1 undecidable manual S 231 0.3777 103 0.79 77
IV.GIGS.HHZ. 2019-08-23T03:12:21.20 0.3 undecidable manual S 166 0.4002 102 -0.36 65
IV.ATCC.EHZ. 2019-08-23T03:12:20.09 0.1 undecidable manual P 301 0.6772 96 -0.04 88
IV.MNTP.HNE. 2019-08-23T03:12:19.00 0.3 undecidable manual S 4 0.2968 107 0.41 66
IV.FDMO.HHZ. 2019-08-23T03:12:19.20 0.1 undecidable manual S 307 0.3229 106 -0.13 93
IV.FEMA.HNE. 2019-08-23T03:12:19.30 0.3 undecidable manual S 293 0.3094 106 0.35 67
IV.PF6.EHE. 2019-08-23T03:12:19.70 0.1 undecidable manual S 329 0.3462 104 -0.3 90
IV.CAMP.HHE. 2019-08-23T03:12:19.20 0.3 undecidable manual S 184 0.3067 107 0.34 68
IV.CSP1.EHE. 2019-08-23T03:12:18.60 0.1 undecidable manual S 326 0.3031 107 -0.17 93
IV.ARRO.EHZ. 2019-08-23T03:12:18.14 0.1 undecidable manual P 242 0.5594 98 0.01 91
IV.MNTT.EHZ. 2019-08-23T03:12:17.90 0.1 undecidable manual S 27 0.2482 112 0.66 81
IV.EL6.EHZ. 2019-08-23T03:12:17.69 0.1 undecidable manual P 333 0.5459 98 -0.21 88
IV.NRCA.HHZ. 2019-08-23T03:12:17.20 0.1 undecidable manual S 268 0.2383 113 0.24 93
IV.SNTG.HHZ. 2019-08-23T03:12:17.50 0.1 undecidable manual P 319 0.5504 98 -0.47 83
IV.TERO.HHZ. 2019-08-23T03:12:17.30 0.3 undecidable manual S 151 0.25 112 0.02 73
IV.SAP2.EHE. 2019-08-23T03:12:17.70 0.3 undecidable manual S 353 0.2563 111 0.23 69
IV.GUMA.HHZ. 2019-08-23T03:12:17.00 0.1 undecidable manual S 341 0.2338 114 0.16 94
IV.SMA1.EHE. 2019-08-23T03:12:16.80 0.1 undecidable manual S 200 0.2239 115 0.22 94
IV.MC2.EHZ. 2019-08-23T03:12:16.00 0.1 undecidable manual S 291 0.1961 119 0.16 95
IV.T1299.EHE. 2019-08-23T03:12:16.20 0.1 undecidable manual S 209 0.2374 113 -0.73 79
IV.TRTR.HHE. 2019-08-23T03:12:15.00 0.1 undecidable manual P 95 0.3498 104 0.41 88
IV.LNSS.HHZ. 2019-08-23T03:12:15.06 0.1 undecidable manual P 231 0.3777 103 0 94
IV.GIGS.HHZ. 2019-08-23T03:12:15.14 0.1 undecidable manual P 166 0.4002 102 -0.3 88
IV.MF5.EHZ. 2019-08-23T03:12:14.50 0.1 undecidable manual S 6 0.1466 129 -0.14 98
IV.RM33.EHE. 2019-08-23T03:12:14.93 0.3 undecidable manual P 206 0.3714 103 -0.02 70
IV.MTRA.EHZ. 2019-08-23T03:12:13.40 0.1 undecidable manual S 200 0.0899 145 -0.09 99
IV.PF6.EHE. 2019-08-23T03:12:13.99 0.1 undecidable manual P 329 0.3462 104 -0.54 84
IV.CAMP.HHE. 2019-08-23T03:12:13.73 0.3 undecidable manual P 184 0.3067 107 -0.14 69
IV.MNTP.HNE. 2019-08-23T03:12:13.75 0.3 undecidable manual P 4 0.2968 107 0.03 72
IV.CSP1.EHE. 2019-08-23T03:12:13.47 0.1 undecidable manual P 326 0.3031 107 -0.36 89
IV.FDMO.HHZ. 2019-08-23T03:12:13.79 0.1 undecidable manual P 307 0.3229 106 -0.36 89
IV.MMO1.EHE. 2019-08-23T03:12:13.64 0.3 undecidable manual S 305 0.1007 142 -0.03 75
IV.FEMA.HNE. 2019-08-23T03:12:13.85 0.3 undecidable manual P 293 0.3094 106 -0.08 71
IV.SAP2.EHE. 2019-08-23T03:12:13.47 0.1 undecidable manual P 353 0.2563 111 0.4 89
IV.GUMA.HHZ. 2019-08-23T03:12:12.51 0.1 undecidable manual P 341 0.2338 114 -0.2 94
IV.T1299.EHE. 2019-08-23T03:12:12.86 0.1 undecidable manual P 209 0.2374 113 0.1 96
IV.SMA1.EHE. 2019-08-23T03:12:12.61 0.1 undecidable manual P 200 0.2239 115 0.05 97
IV.MNTT.EHZ. 2019-08-23T03:12:12.98 0.1 undecidable manual P 27 0.2482 112 0.04 96
IV.NRCA.HHZ. 2019-08-23T03:12:12.75 0.1 positive manual P 268 0.2383 113 -0.03 96
IV.MC2.EHZ. 2019-08-23T03:12:12.14 0.1 undecidable manual P 291 0.1961 119 0.01 98
IV.TERO.HHZ. 2019-08-23T03:12:12.80 0.3 undecidable manual P 151 0.25 112 -0.16 70
IV.MF5.EHZ. 2019-08-23T03:12:11.23 0.1 undecidable manual P 6 0.1466 129 -0.2 95
IV.MMO1.EHE. 2019-08-23T03:12:10.67 0.3 undecidable manual P 305 0.1007 142 -0.21 72
IV.MTRA.EHZ. 2019-08-23T03:12:10.78 0.1 positive manual P 200 0.0899 145 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HNN. ML:2.3 0.00096513895 0.5904 AML other m 2019-08-23T03:12:17.93
IV.MNTT.EHE. ML:1.8 0.00028841995 0.4608 AML other m 2019-08-23T03:12:18.33
IV.FDMO.HHE. ML:1.4 7.824909E-5 0.2192 AML other m 2019-08-23T03:12:19.47
IV.FDMO.HHN. ML:1.1 5.1705285E-5 0.2208 AML other m 2019-08-23T03:12:19.46
IV.GIGS.HHE. ML:0.6 7.582077E-6 0.1792 AML other m 2019-08-23T03:12:23.94
IV.NRCA.HNN. ML:2.2 0.0008082596 0.1712 AML other m 2019-08-23T03:12:17.62
IV.NRCA.HNE. ML:2.1 0.00065559785 0.12 AML other m 2019-08-23T03:12:17.59
IV.NRCA.HHN. ML:2.2 0.00082603595 0.1616 AML other m 2019-08-23T03:12:17.62
IV.NRCA.HHE. ML:2.2 0.0007033612 0.12 AML other m 2019-08-23T03:12:17.59
IV.SNTG.HHE. ML:0.7 1.0245073E-5 0.1008 AML other m 2019-08-23T03:12:27.60
IV.MTRA.EHE. ML:2.2 0.0014606495 0.08 AML other m 2019-08-23T03:12:13.72
IV.MTRA.HNE. ML:3.8 0.0586135 50.3904 AML other m 2019-08-23T03:11:48.45
IV.GUMA.HHN. ML:2 0.00052768765 0.24 AML other m 2019-08-23T03:12:17.19
IV.LNSS.HHN. ML:1.3 5.4364135E-5 0.2992 AML other m 2019-08-23T03:12:24.25
IV.SNTG.HHN. ML:0.7 9.894634E-6 0.1216 AML other m 2019-08-23T03:12:26.97
IV.MTRA.EHN. ML:2.3 0.0015672715 0.1008 AML other m 2019-08-23T03:12:13.73
IV.MF5.EHN. ML:1.5 0.00023208955 0.4192 AML other m 2019-08-23T03:12:14.77
IV.MF5.EHE. ML:1.7 0.00037400955 0.3616 AML other m 2019-08-23T03:12:15.02
IV.GUMA.HHE. ML:1.9 0.0003872365 0.1216 AML other m 2019-08-23T03:12:17.12
IV.GUMA.HNE. ML:1.9 0.00038018065 0.1392 AML other m 2019-08-23T03:12:17.11
IV.MNTT.EHN. ML:1.7 0.0002163754 0.3408 AML other m 2019-08-23T03:12:20.56
IV.LNSS.HHE. ML:1.4 7.1927915E-5 0.16 AML other m 2019-08-23T03:12:24.62
IV.EL6.EHE. ML:1.2 2.7860045E-5 0.1808 AML other m 2019-08-23T03:12:29.56
IV.EL6.EHN. ML:1.3 3.8644195E-5 2.04 AML other m 2019-08-23T03:12:27.55
IV.ATCC.EHE. ML:1 1.4839195E-5 0.3408 AML other m 2019-08-23T03:12:31.92
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