Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 17-10-2016 and time 12:26:00 (Italy) in region 5 km SE Amatrice (RI)

A magnitude ML 1.1 earthquake occured in region: 5 km SE Amatrice (RI), on

  • 17-10-2016 10:26:00 (UTC)
  • 17-10-2016 12:26:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5910, 13.3190 at 10 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 5 2657 2657
Campotosto AQ 6 542 3199
Capitignano AQ 8 665 3864
Montereale AQ 10 2581 6445
Accumoli RI 13 667 7112
Cittareale RI 13 482 7594
Crognaleto TE 14 1297 8891
Barete AQ 16 737 9628
Cortino TE 16 656 10284
Cagnano Amiterno AQ 17 1369 11653
Pizzoli AQ 17 4326 15979
Borbona RI 18 617 16596
Fano Adriano TE 18 296 16892
Posta RI 20 694 17586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Chieti (51815 inhabitants)
75 Km W of Pescara (121014 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
95 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 1.1 2016-10-17
10:26:00		 42.5912 13.3193 10 2016-10-17
10:32:52		 Sala Sismica INGV-Roma 30296371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-17 10:26:00 ± 0.06
Latitude 42.5912 ± 0.0045
Longitude 13.3193 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30296371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 470
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 173
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40739
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 30296371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-17 10:32:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TOLF.HHZ. 2016-10-17T10:26:23.33 3.0 negative manual P 1.74 0
IV.T1211.EHZ. 2016-10-17T10:26:13.11 0.3 undecidable manual S 260 38.4282 50 -0.28 68
IV.MC2.EHZ. 2016-10-17T10:26:13.43 0.3 undecidable manual S 343 37.0296 50 0.41 67
IV.MMO1.EHZ. 2016-10-17T10:26:12.10 0.3 undecidable manual S 1 34.1436 50 -0.14 71
IV.T1217.EHZ. 2016-10-17T10:26:12.18 0.3 undecidable manual S 293 34.3434 50 -0.12 71
IV.ARRO.EHZ. 2016-10-17T10:26:09.04 0.3 undecidable manual P 268 45.2214 50 0.06 71
IV.TERO.HHZ. 2016-10-17T10:26:09.08 0.3 undecidable manual S 81 23.4543 114 -0.29 70
IV.T1215.EHZ. 2016-10-17T10:26:08.51 0.3 undecidable manual P 303 43.5231 50 -0.2 69
IV.LNSS.HHZ. 2016-10-17T10:26:08.95 0.3 undecidable manual S 273 22.8549 114 -0.21 71
IV.MC2.EHZ. 2016-10-17T10:26:07.91 0.6 undecidable manual P 343 37.0296 50 0.19 47
IV.MMO1.EHZ. 2016-10-17T10:26:07.17 0.3 undecidable manual P 1 34.1436 50 -0.1 72
IV.T1217.EHZ. 2016-10-17T10:26:07.27 0.3 undecidable manual P 293 34.3434 50 -0.03 73
IV.T1211.EHZ. 2016-10-17T10:26:07.79 0.1 undecidable manual P 260 38.4282 50 -0.14 94
IV.T1202.EHN. 2016-10-17T10:26:06.99 0.6 undecidable manual S 328 14.6742 125 0.31 47
IV.T1243.HHZ. 2016-10-17T10:26:06.79 0.3 undecidable manual S 42 15.7731 123 -0.2 72
IV.T1246.HHE. 2016-10-17T10:26:06.50 0.3 undecidable manual S 93 14.1747 126 -0.05 75
IV.T1204.EHZ. 2016-10-17T10:26:05.06 0.3 undecidable manual S 359 9.3795 137 -0.24 72
IV.TERO.HHZ. 2016-10-17T10:26:05.53 0.1 positive manual P 81 23.4543 114 -0.08 98
IV.LNSS.HHZ. 2016-10-17T10:26:05.47 0.3 positive manual P 273 22.8549 114 -0.02 74
IV.SMA1.EHZ. 2016-10-17T10:26:04.24 0.1 undecidable manual S 17 4.5954 156 -0.13 100
IV.T1202.EHN. 2016-10-17T10:26:04.36 0.1 undecidable manual P 328 14.6742 125 0.3 95
IV.T1243.HHZ. 2016-10-17T10:26:04.32 0.1 positive manual P 42 15.7731 123 0.08 99
IV.T1246.HHE. 2016-10-17T10:26:04.24 0.1 undecidable manual P 93 14.1747 126 0.25 96
IV.T1299.EHN. 2016-10-17T10:26:04.13 0.1 undecidable manual S 328 5.6943 151 -0.41 94
IV.RM33.EHZ. 2016-10-17T10:26:03.96 0.1 positive manual P 223 12.4764 129 0.25 96
IV.T1204.EHZ. 2016-10-17T10:26:03.40 0.1 undecidable manual P 359 9.3795 137 0.14 99
IV.T1201.HNZ. 2016-10-17T10:26:03.49 0.1 undecidable manual P 323 9.1797 138 0.25 97
IV.T1299.EHN. 2016-10-17T10:26:02.93 0.1 undecidable manual P 328 5.6943 151 0.11 100
IV.SMA1.EHZ. 2016-10-17T10:26:02.93 0.1 positive manual P 17 4.5954 156 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.1 0.00007700000000000001 0.54 AML other m 2016-10-17T10:26:09.61
IV.LNSS.HHN. ML:1.2 0.0000979 1.44 AML other m 2016-10-17T10:26:09.59
IV.RM33.EHN. ML:1.1 0.000131 0.62 AML other m 2016-10-17T10:26:06.74
IV.RM33.EHE. ML:1.0 0.000115 1 AML other m 2016-10-17T10:26:06.44
IV.TERO.HHN. ML:1.2 0.0001029 0.76 AML other m 2016-10-17T10:26:09.53
IV.TERO.HHE. ML:1.1 0.0000864 0.48 AML other m 2016-10-17T10:26:11.28
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