Earthquake with magnitude of Md 1.5 on date 16-10-2016 and time 20:17:34 (UTC) in region E Amatrice (RI)

A magnitude Md 1.5 earthquake occured in region: E Amatrice (RI), on

  • 16-10-2016 20:17:34 (UTC)
  • 16-10-2016 22:17:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6320, 13.2940 at 5 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
Amatrice RI 0 2657 2657
Accumoli RI 8 667 3324
Campotosto AQ 10 542 3866
Cittareale RI 11 482 4348
Capitignano AQ 12 665 5013
Montereale AQ 13 2581 7594
Arquata del Tronto AP 16 1178 8772
Cortino TE 18 656 9428
Crognaleto TE 18 1297 10725
Acquasanta Terme AP 18 2916 13641
Borbona RI 19 617 14258
Cagnano Amiterno AQ 20 1369 15627
Barete AQ 20 737 16364

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of L'Aquila (69753 inhabitants)
34 Km W of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
78 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
91 Km SE 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
Reviewed
Rev100
Md 1.5 2016-10-16
20:17:34
42.6317 13.2937 5 2016-10-16
20:40:49
Sala Sismica INGV-Roma 30274991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-16 20:17:34 ± 0.17
Latitude 42.6317 ± 0.0081
Longitude 13.2937 ± 0.0086
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30274991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 869
Semi-minor axis of confidence ellipse (meter) 376
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22843
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

Md:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude Md
Reference to an origin 30274991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-16 20:40:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2016-10-16T20:17:43.00 0.6 undecidable manual S 92 25.3524 102 -0.16 47
IV.TERO.HHZ. 2016-10-16T20:17:38.94 0.1 undecidable manual P 92 25.3524 102 -0.42 90
IV.CAMP.HHZ. 2016-10-16T20:17:37.26 0.1 undecidable manual P 138 14.1747 111 0.05 99
IV.T1243.HHZ. 2016-10-16T20:17:37.27 0.3 positive manual P 60 14.5743 110 0 75
IV.RM33.HNN. 2016-10-16T20:17:37.54 0.3 undecidable manual P 205 15.0738 109 0.17 72
IV.T1201.HNZ. 2016-10-16T20:17:36.45 0.6 undecidable manual S 309 4.4955 140 -0.14 49
IV.T1202.EHN. 2016-10-16T20:17:36.53 0.1 undecidable manual P 325 9.7791 119 0.13 98
IV.SMA1.EHZ. 2016-10-16T20:17:36.77 0.6 undecidable manual S 92 3.3966 147 0.41 47
IV.SMA1.EHZ. 2016-10-16T20:17:35.73 0.1 positive manual P 92 3.3966 147 0.29 96
IV.T1299.EHN. 2016-10-16T20:17:35.03 0.1 undecidable manual P 287 0.999 170 -0.22 97
IV.T1204.EHZ. 2016-10-16T20:17:35.89 0.1 undecidable manual P 21 5.2947 135 0.22 97
IV.T1299.EHN. 2016-10-16T20:17:35.62 0.6 undecidable manual S 287 0.999 170 -0.43 47
IV.T1201.HNZ. 2016-10-16T20:17:35.50 0.1 undecidable manual P 309 4.4955 140 -0.07 100
IV.VIVA.HHZ. 2016-10-16T20:17:24.93 3.0 positive manual P 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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