Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 16-10-2016 and time 21:06:18 (UTC) in region 4 km SE Amatrice (RI)

A magnitude ML 1.4 earthquake occured in region: 4 km SE Amatrice (RI), on

  • 16-10-2016 21:06:18 (UTC)
  • 16-10-2016 23:06:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6050, 13.3180 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
Amatrice RI 4 2657 2657
Campotosto AQ 7 542 3199
Capitignano AQ 9 665 3864
Montereale AQ 11 2581 6445
Accumoli RI 12 667 7112
Cittareale RI 13 482 7594
Crognaleto TE 15 1297 8891
Cortino TE 16 656 9547
Barete AQ 17 737 10284
Cagnano Amiterno AQ 18 1369 11653
Borbona RI 18 617 12270
Pizzoli AQ 19 4326 16596
Arquata del Tronto AP 19 1178 17774
Fano Adriano TE 19 296 18070
Rocca Santa Maria TE 19 537 18607
Acquasanta Terme AP 20 2916 21523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
75 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
94 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 		ML 1.4 2016-10-16
21:06:18		 42.6048 13.318 11 2016-10-16
21:15:55		 Sala Sismica INGV-Roma 30275631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-16 21:06:18 ± 0.04
Latitude 42.6048 ± 0.0027
Longitude 13.3180 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30275631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 267
Semi-minor axis of confidence ellipse (meter) 264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 153
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80130
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.6
Num. used stations 8
Type of magnitude ML
Reference to an origin 30275631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-16 21:15:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2016-10-16T21:06:32.43 3.0 undecidable manual P 88.9443 -0.86 0
IV.T1211.EHZ. 2016-10-16T21:06:30.68 0.3 undecidable manual S 258 38.628 50 -0.28 68
IV.MC2.EHZ. 2016-10-16T21:06:30.99 3.0 undecidable manual S 0.12 0
IV.MMO1.EHZ. 2016-10-16T21:06:29.52 0.6 undecidable manual S 1 32.6451 50 0.16 47
IV.T1217.EHZ. 2016-10-16T21:06:29.47 0.3 undecidable manual S 291 33.744 50 -0.17 70
IV.NRCA.HHZ. 2016-10-16T21:06:28.57 0.6 undecidable manual S 327 30.3474 50 -0.17 47
IV.TERO.HHZ. 2016-10-16T21:06:26.64 0.3 undecidable manual S 85 23.4543 50 -0.25 70
IV.ARRO.EHZ. 2016-10-16T21:06:26.57 0.6 negative manual P 267 45.2214 50 0.02 47
IV.LNSS.HHZ. 2016-10-16T21:06:26.59 0.6 undecidable manual S 270 22.6551 50 -0.1 48
IV.T1211.EHZ. 2016-10-16T21:06:25.52 0.6 positive manual P 258 38.628 50 -0.02 48
IV.T1216.EHZ. 2016-10-16T21:06:25.96 1.0 negative manual P 323 40.0266 50 0.21 23
IV.T1247.HHZ. 2016-10-16T21:06:25.51 0.6 undecidable manual S 185 18.1707 121 0.02 50
IV.T1217.EHZ. 2016-10-16T21:06:24.98 0.1 undecidable manual P 291 33.744 50 0.2 93
IV.RM33.EHZ. 2016-10-16T21:06:24.05 0.6 undecidable manual S 219 13.5753 129 -0.13 49
IV.NRCA.HHZ. 2016-10-16T21:06:24.39 0.1 negative manual P 327 30.3474 50 0.13 95
IV.MMO1.EHZ. 2016-10-16T21:06:24.67 0.1 undecidable manual P 1 32.6451 50 0.05 96
IV.GIGS.HHZ. 2016-10-16T21:06:23.70 0.1 undecidable manual P 129 26.751 50 -0.01 98
IV.CAMP.HHZ. 2016-10-16T21:06:23.25 0.6 undecidable manual S 136 10.6782 136 -0.18 49
IV.TERO.HHZ. 2016-10-16T21:06:23.20 0.1 undecidable manual P 85 23.4543 50 0.01 98
IV.LNSS.HHZ. 2016-10-16T21:06:23.11 0.1 undecidable manual P 270 22.6551 50 0.03 98
IV.T1247.HHZ. 2016-10-16T21:06:22.56 0.3 positive manual P 185 18.1707 121 0.18 72
IV.T1204.EHZ. 2016-10-16T21:06:22.34 0.6 undecidable manual S 359 7.881 144 -0.46 46
IV.T1243.HHZ. 2016-10-16T21:06:21.84 0.1 positive manual P 46 14.6742 126 0.04 99
IV.CAMP.HHZ. 2016-10-16T21:06:21.33 0.1 undecidable manual P 136 10.6782 136 0.14 98
IV.SMA1.EHZ. 2016-10-16T21:06:21.77 0.6 undecidable manual S 26 3.1968 164 -0.3 48
IV.T1202.EHZ. 2016-10-16T21:06:21.90 0.6 positive manual P 325 13.3755 129 0.31 47
IV.RM33.EHZ. 2016-10-16T21:06:21.80 1.0 positive manual P 219 13.5753 129 0.17 24
IV.SMA1.EHZ. 2016-10-16T21:06:20.49 0.6 undecidable manual P 26 3.1968 164 0.08 50
IV.T1204.EHZ. 2016-10-16T21:06:20.89 0.1 undecidable manual P 359 7.881 144 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHN. ML:0.7 0.000059800000000000003 0.54 AML other m 2016-10-16T21:06:23.65
IV.CAMP.HHE. ML:0.9 0.0000894 0.54 AML other m 2016-10-16T21:06:23.73
IV.LNSS.HHE. ML:1.1 0.0000818 0.74 AML other m 2016-10-16T21:06:27.06
IV.LNSS.HHN. ML:1.2 0.00010065 0.46 AML other m 2016-10-16T21:06:27.16
IV.NRCA.HHN. ML:1.8 0.0003265 0.68 AML other m 2016-10-16T21:06:30.44
IV.NRCA.HHE. ML:2.1 0.0006905 0.1 AML other m 2016-10-16T21:06:30.41
IV.RM33.EHN. ML:1.2 0.000156 0.3 AML other m 2016-10-16T21:06:24.17
IV.RM33.EHE. ML:1.3 0.0001895 0.72 AML other m 2016-10-16T21:06:25.26
IV.SMA1.EHN. ML:2.1 0.001955 0.14 AML other m 2016-10-16T21:06:22.04
IV.SMA1.EHE. ML:2.3 0.0035650000000000005 0.22 AML other m 2016-10-16T21:06:22.04
IV.T1211.HNN. ML:4.5 0.118 1.58 AML other m 2016-10-16T21:06:33.31
IV.T1211.HNE. ML:4.7 0.18045 1.42 AML other m 2016-10-16T21:06:45.31
IV.T1247.HHN. ML:1.5 0.0002615 0.18 AML other m 2016-10-16T21:06:25.73
IV.T1247.HHE. ML:1.4 0.00019600000000000002 0.14 AML other m 2016-10-16T21:06:27.09
IV.TERO.HHN. ML:1.2 0.0000889 0.1 AML other m 2016-10-16T21:06:26.81
IV.TERO.HHE. ML:1.4 0.00014649999999999998 1.06 AML other m 2016-10-16T21:06:26.75
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