Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.3 on date 16-10-2016 and time 19:25:53 (UTC) in region 6 km W Montegallo (AP)

A magnitude Md 1.3 earthquake occured in region: 6 km W Montegallo (AP), on

  • 16-10-2016 19:25:53 (UTC)
  • 16-10-2016 21:25:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8640, 13.2630 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.

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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
Montegallo AP 6 523 523
Montemonaco AP 7 604 1127
Castelsantangelo sul Nera MC 10 281 1408
Arquata del Tronto AP 11 1178 2586
Montefortino FM 11 1178 3764
Ussita MC 14 444 4208
Bolognola MC 15 142 4350
Amandola FM 15 3629 7979
Norcia PG 16 4957 12936
Acquasanta Terme AP 16 2916 15852
Visso MC 16 1107 16959
Comunanza AP 16 3166 20125
Palmiano AP 17 196 20321
Roccafluvione AP 17 2010 22331
Preci PG 18 724 23055
Accumoli RI 19 667 23722
Venarotta AP 19 2066 25788
Sarnano MC 19 3264 29052
Acquacanina MC 20 121 29173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
61 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
86 Km S of Ancona (100861 inhabitants)
90 Km NW of Pescara (121014 inhabitants)
94 Km NW of Chieti (51815 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
Reviewed
Rev100 		Md 1.3 2016-10-16
19:25:53		 42.8643 13.2627 11 2016-10-16
19:30:27		 Sala Sismica INGV-Roma 30271961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-16 19:25:53 ± 0.15
Latitude 42.8643 ± 0.0099
Longitude 13.2627 ± 0.0110
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30271961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1043
Semi-minor axis of confidence ellipse (meter) 911
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.34804
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

Md:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude Md
Reference to an origin 30271961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-16 19:30:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1243.HHZ. 2016-10-16T19:26:02.08 0.6 undecidable manual S 141 23.9538 50 -0.08 48
IV.T1202.EHZ. 2016-10-16T19:26:00.78 0.6 undecidable manual S 190 18.0708 121 0.25 47
IV.T1216.EHZ. 2016-10-16T19:26:00.98 0.6 undecidable manual S 278 20.0688 50 -0.13 48
IV.T1215.EHZ. 2016-10-16T19:25:59.91 1.0 undecidable manual P 258 32.8449 50 0.16 23
IV.TERO.HHZ. 2016-10-16T19:25:59.87 0.1 undecidable manual P 134 38.628 50 -0.77 77
IV.NRCA.HHZ. 2016-10-16T19:25:58.44 0.6 undecidable manual S 254 12.5763 131 -0.51 45
IV.T1204.EHZ. 2016-10-16T19:25:58.27 0.1 undecidable manual P 168 21.3675 50 0.29 93
IV.T1243.HHZ. 2016-10-16T19:25:58.73 1.0 undecidable manual P 141 23.9538 50 0.34 23
IV.T1216.EHZ. 2016-10-16T19:25:57.92 0.1 undecidable manual P 278 20.0688 50 0.15 96
IV.MMO1.EHZ. 2016-10-16T19:25:57.58 0.6 undecidable manual S 53 6.4935 149 0 50
IV.T1202.EHZ. 2016-10-16T19:25:57.74 0.6 negative manual P 190 18.0708 121 0.3 46
IV.T1245.HHZ. 2016-10-16T19:25:56.80 0.6 undecidable manual S 262 6.0939 150 -0.72 42
IV.NRCA.HHZ. 2016-10-16T19:25:56.65 0.1 positive manual P 254 12.5763 131 0.12 98
IV.MMO1.EHZ. 2016-10-16T19:25:56.10 1.0 undecidable manual P 53 6.4935 149 0.36 23
IV.MC2.EHZ. 2016-10-16T19:25:56.09 0.1 undecidable manual P 311 7.9809 143 0.19 97
IV.T1245.HHZ. 2016-10-16T19:25:55.75 0.1 undecidable manual P 262 6.0939 150 0.05 100
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