Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 31-08-2017 and time 17:57:38 (Italy) in region 2 km S Palmiano (AP)

A magnitude ML 1.7 earthquake occured in region: 2 km S Palmiano (AP), on

  • 31-08-2017 15:57:38 (UTC)
  • 31-08-2017 17:57:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8820, 13.4610 at 17 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Palmiano AP 2 196 196
Roccafluvione AP 3 2010 2206
Venarotta AP 3 2066 4272
Comunanza AP 9 3166 7438
Force AP 9 1354 8792
Ascoli Piceno AP 10 49407 58199
Montemonaco AP 11 604 58803
Montegallo AP 11 523 59326
Rotella AP 12 906 60232
Montefortino FM 12 1178 61410
Montefalcone Appennino FM 12 424 61834
Acquasanta Terme AP 13 2916 64750
Smerillo FM 14 365 65115
Amandola FM 14 3629 68744
Montedinove AP 14 488 69232
Castignano AP 15 2796 72028
Folignano AP 16 9241 81269
Santa Vittoria in Matenano FM 16 1330 82599
Montelparo FM 16 778 83377
Valle Castellana TE 17 977 84354
Monte San Martino MC 17 765 85119
Montalto delle Marche AP 17 2122 87241
Appignano del Tronto AP 17 1785 89026
Arquata del Tronto AP 18 1178 90204
Monte Rinaldo FM 19 379 90583
Maltignano AP 19 2401 92984
Monteleone di Fermo FM 19 395 93379
Penna San Giovanni MC 20 1108 94487
Offida AP 20 5058 99545

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Teramo (54892 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
62 Km E of Foligno (57155 inhabitants)
70 Km NW of Montesilvano (53738 inhabitants)
75 Km E of Terni (111501 inhabitants)
77 Km NW of Pescara (121014 inhabitants)
82 Km S of Ancona (100861 inhabitants)
83 Km NW of Chieti (51815 inhabitants)
91 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 1.7 2017-08-31
15:57:38		 42.8825 13.4612 17 2018-07-06
15:40:36		 Bollettino Sismico Italiano INGV 52520061
Reviewed
Rev100 		ML 1.7 2017-08-31
15:57:38		 42.8837 13.4568 18 2017-08-31
16:29:23		 Sala Sismica INGV-Roma 49547921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-31 15:57:38 ± 0.08
Latitude 42.8825 ± 0.0027
Longitude 13.4612 ± 0.0049
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 52520061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 398
Semi-minor axis of confidence ellipse (meter) 87
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.56567
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 38
Type of magnitude ML
Reference to an origin 52520061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-12-11 11:34:36

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 36
Type of magnitude ML
Reference to an origin 49547921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-31 16:29:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1211.EHZ. 2017-08-31T15:57:58.79 0.3 undecidable manual S 232 62.7927 97 0.5 62
IV.GIGS.HHZ. 2017-08-31T15:57:54.78 0.1 undecidable manual S 169 48.5181 100 0.28 91
IV.RM33.EHZ. 2017-08-31T15:57:54.08 0.3 undecidable manual S 206 46.0206 100 0.22 69
IV.CESI.HHZ. 2017-08-31T15:57:54.42 0.3 undecidable manual S 287 47.2194 100 0.26 67
IV.T1218.EHZ. 2017-08-31T15:57:51.72 0.3 undecidable manual S 230 36.741 104 0.29 68
IV.CAMP.HHZ. 2017-08-31T15:57:51.96 0.3 undecidable manual S 186 38.7279 103 0.02 73
IV.T1216.EHZ. 2017-08-31T15:57:51.25 0.3 undecidable manual S 272 35.9418 104 0.03 72
IV.TERO.HHZ. 2017-08-31T15:57:50.00 0.3 undecidable manual S 158 31.0467 107 0.03 73
IV.T1211.EHZ. 2017-08-31T15:57:50.38 0.6 undecidable manual P 232 62.7927 97 0.26 44
IV.FDMO.HHZ. 2017-08-31T15:57:50.68 0.3 undecidable manual S 300 34.8429 105 -0.25 70
IV.CSP1.EHZ. 2017-08-31T15:57:49.88 0.3 undecidable manual S 318 31.1466 107 -0.12 72
IV.MNTP.HNZ. 2017-08-31T15:57:49.76 0.6 undecidable manual S 1 28.2495 110 0.5 44
IV.EL6.EHZ. 2017-08-31T15:57:49.49 0.6 undecidable manual P 330 57.498 98 0.18 45
IV.SMA1.EHZ. 2017-08-31T15:57:49.75 0.1 undecidable manual S 200 29.748 108 0.11 96
IV.GIGS.HHZ. 2017-08-31T15:57:48.03 0.6 undecidable manual P 169 48.5181 100 0.09 47
IV.T1214.EHZ. 2017-08-31T15:57:48.65 0.3 undecidable manual S 236 24.6531 114 0.28 70
IV.GUMA.HNN. 2017-08-31T15:57:48.21 0.1 undecidable manual S 333 22.4553 117 0.38 92
IV.RM33.EHZ. 2017-08-31T15:57:47.37 0.3 undecidable manual P 206 46.0206 100 -0.2 69
IV.CESI.HHZ. 2017-08-31T15:57:47.46 0.1 undecidable manual P 287 47.2194 100 -0.28 90
IV.MC2.EHZ. 2017-08-31T15:57:47.95 0.3 undecidable manual S 278 22.3554 117 0.14 72
IV.MTRA.EHZ. 2017-08-31T15:57:46.06 0.3 undecidable manual S 201 14.874 131 -0.09 74
IV.T1218.EHZ. 2017-08-31T15:57:46.01 0.1 undecidable manual P 230 36.741 104 -0.15 94
IV.CAMP.HHZ. 2017-08-31T15:57:46.11 0.1 undecidable manual P 186 38.7279 103 -0.35 90
IV.MMO1.EHZ. 2017-08-31T15:57:45.32 0.1 undecidable manual S 280 11.0778 141 -0.12 100
IV.FDMO.HHZ. 2017-08-31T15:57:45.55 0.3 undecidable manual P 300 34.8429 105 -0.33 69
IV.T1216.EHZ. 2017-08-31T15:57:45.74 0.3 undecidable manual P 272 35.9418 104 -0.31 69
IV.CSP1.EHZ. 2017-08-31T15:57:45.06 0.1 undecidable manual P 318 31.1466 107 -0.28 93
IV.TERO.HHZ. 2017-08-31T15:57:45.06 0.3 undecidable manual P 158 31.0467 107 -0.26 69
IV.T1214.EHZ. 2017-08-31T15:57:44.37 0.1 undecidable manual P 236 24.6531 114 -0.02 99
IV.GUMA.HNN. 2017-08-31T15:57:44.07 0.1 undecidable manual P 333 22.4553 117 -0.02 100
IV.SMA1.EHZ. 2017-08-31T15:57:44.95 0.1 positive manual P 200 29.748 108 -0.18 95
IV.OFFI.HHZ. 2017-08-31T15:57:44.17 0.1 undecidable manual P 72 19.1697 122 0.53 90
IV.MNTP.HNZ. 2017-08-31T15:57:44.99 0.3 undecidable manual P 1 28.2495 110 0.07 73
IV.MC2.EHZ. 2017-08-31T15:57:43.96 0.1 undecidable manual P 278 22.3554 117 -0.11 98
IV.MMO1.EHZ. 2017-08-31T15:57:42.52 0.1 undecidable manual P 280 11.0778 141 -0.18 98
IV.MTRA.EHZ. 2017-08-31T15:57:42.96 0.1 undecidable manual P 201 14.874 131 -0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:2.3 0.001517231 0.08 AML other m 2017-08-31T15:57:46.20
IV.MTRA.EHN. ML:1.8 0.0005007611 0.12 AML other m 2017-08-31T15:57:46.91
IV.MTRA.HNN. ML:4.4 0.17025144999999997 0.36 AML other m 2017-08-31T15:57:48.84
IV.T1214.HNN. ML:1.7 0.00025997245 0.208 AML other m 2017-08-31T15:57:48.92
IV.T1214.EHN. ML:1.7 0.000259328 0.256 AML other m 2017-08-31T15:57:48.79
IV.T1214.EHE. ML:1.9 0.000436949 0.24 AML other m 2017-08-31T15:57:48.98
IV.T1214.HNE. ML:1.9 0.00044511515 0.24 AML other m 2017-08-31T15:57:48.98
IV.MTRA.HNE. ML:4.6 0.2689413500000001 0.25 AML other m 2017-08-31T15:57:49.53
IV.SMA1.EHE. ML:1.9 0.00037267534999999995 0.14 AML other m 2017-08-31T15:57:49.87
IV.SMA1.EHN. ML:2.0 0.00047558484999999994 0.2 AML other m 2017-08-31T15:57:49.81
IV.TERO.HNN. ML:1.2 0.000065450775 1.55 AML other m 2017-08-31T15:57:50.03
IV.CSP1.EHN. ML:1.0 0.000043902255 0.26 AML other m 2017-08-31T15:57:50.26
IV.CSP1.EHE. ML:1.2 0.000059791169999999996 0.26 AML other m 2017-08-31T15:57:50.33
IV.OFFI.HHE. ML:1.5 0.00018172255 0.42 AML other m 2017-08-31T15:57:50.64
IV.TERO.HHN. ML:1.3 0.000084338465 0.08 AML other m 2017-08-31T15:57:51.38
IV.T1216.EHE. ML:2.1 0.00044175915 0.144 AML other m 2017-08-31T15:57:51.50
IV.TERO.HHE. ML:1.3 0.000089571165 0.06 AML other m 2017-08-31T15:57:51.64
IV.T1218.EHN. ML:2.4 0.0008579341999999999 1.808 AML other m 2017-08-31T15:57:52.06
IV.T1218.HNN. ML:2.4 0.00085014885 0.32 AML other m 2017-08-31T15:57:52.06
IV.T1218.EHE. ML:1.9 0.0002627211 0.16 AML other m 2017-08-31T15:57:52.17
IV.T1216.EHN. ML:2.1 0.0005123404 0.272 AML other m 2017-08-31T15:57:52.48
IV.T1218.HNE. ML:1.9 0.0002607975 0.16 AML other m 2017-08-31T15:57:52.41
IV.CAMP.HHN. ML:1.1 0.000042878275 1.56 AML other m 2017-08-31T15:57:53.88
IV.CAMP.HHE. ML:1.1 0.00003775732 0.22 AML other m 2017-08-31T15:57:53.18
IV.RM33.EHN. ML:1.5 0.00009040986500000001 0.32 AML other m 2017-08-31T15:57:54.53
IV.OFFI.HHN. ML:1.5 0.00018250645 0.42 AML other m 2017-08-31T15:57:54.54
IV.CESI.HHE. ML:1.7 0.00013257115 0.18 AML other m 2017-08-31T15:57:54.63
IV.CESI.HHN. ML:1.9 0.0002006261 0.22 AML other m 2017-08-31T15:57:54.75
IV.RM33.HNE. ML:1.6 0.0001140977 0.52 AML other m 2017-08-31T15:57:54.72
IV.RM33.HNN. ML:1.7 0.00013799674500000002 0.31 AML other m 2017-08-31T15:57:55.29
IV.RM33.EHE. ML:1.5 0.00008666414 0.26 AML other m 2017-08-31T15:57:55.86
IV.GIGS.HHN. ML:0.6 0.000008874073500000001 0.08 AML other m 2017-08-31T15:57:58.26
IV.GIGS.HHE. ML:0.6 0.000009577384000000002 0.24 AML other m 2017-08-31T15:57:58.87
IV.EL6.EHN. ML:1.2 0.000036814755 0.22 AML other m 2017-08-31T15:57:59.36
IV.T1211.EHN. ML:1.6 0.000068161719 0.16 AML other m 2017-08-31T15:57:59.38
IV.T1211.HNN. ML:1.6 0.000069189395 0.176 AML other m 2017-08-31T15:57:59.29
IV.EL6.EHE. ML:1.3 0.000039098789 0.24 AML other m 2017-08-31T15:58:00.57
IV.T1211.EHE. ML:1.3 0.000040962534999999995 0.112 AML other m 2017-08-31T15:58:00.77
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download