Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 17-10-2019 and time 21:19:44 (Italy) in region 5 km S Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 5 km S Amatrice (RI), on

  • 17-10-2019 19:19:44 (UTC)
  • 17-10-2019 21:19:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5870, 13.3050 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 7 665 3864
Montereale AQ 8 2581 6445
Cittareale RI 12 482 6927
Accumoli RI 13 667 7594
Crognaleto TE 15 1297 8891
Barete AQ 15 737 9628
Cagnano Amiterno AQ 16 1369 10997
Borbona RI 16 617 11614
Pizzoli AQ 17 4326 15940
Cortino TE 17 656 16596
Posta RI 18 694 17290
Fano Adriano TE 20 296 17586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of L'Aquila (69753 inhabitants)
34 Km W of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
76 Km W of Chieti (51815 inhabitants)
76 Km W of Pescara (121014 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
81 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 1.0 2019-10-17
19:19:44		 42.5873 13.305 10 2019-10-17
19:23:41		 Sala Sismica INGV-Roma 73311661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-17 19:19:44 ± 0.1
Latitude 42.5873 ± 0.0045
Longitude 13.3050 ± 0.0061
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73311661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 468
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
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) 110
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.28329
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 73311661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-17 19:23:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-10-17T19:19:53.60 0.3 undecidable manual S 81 24.753 112 -0.09 76
IV.MTRA.EHZ. 2019-10-17T19:19:52.00 0.6 undecidable manual S 22 20.1687 116 -0.26 49
IV.NRCA.HHZ. 2019-10-17T19:19:50.77 0.1 undecidable manual P 330 31.4463 50 -0.08 100
IV.MTRA.EHZ. 2019-10-17T19:19:49.04 0.6 undecidable manual P 22 20.1687 116 0.08 51
IV.CAMP.HHZ. 2019-10-17T19:19:49.30 0.6 undecidable manual S 124 10.2786 134 -0.11 51
IV.TERO.HHZ. 2019-10-17T19:19:49.84 0.3 undecidable manual P 81 24.753 112 0.06 76
IV.RM33.EHZ. 2019-10-17T19:19:49.44 0.6 undecidable manual S 220 11.3775 131 -0.27 50
IV.SMA1.EHZ. 2019-10-17T19:19:48.33 0.3 undecidable manual S 27 5.3946 152 -0.05 79
IV.SMA1.EHZ. 2019-10-17T19:19:47.00 0.1 positive manual P 27 5.3946 152 0.29 100
IV.CAMP.HHZ. 2019-10-17T19:19:47.48 1.0 negative manual P 124 10.2786 134 0.17 25
IV.RM33.EHZ. 2019-10-17T19:19:47.57 0.3 positive manual P 220 11.3775 131 0.09 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.6 0.0007455000000000001 0.12 AML other m 2019-10-17T19:19:48.69
IV.SMA1.EHE. ML:1.8 0.001172 0.18 AML other m 2019-10-17T19:19:48.76
IV.CAMP.HHN. ML:0.9 0.0000882 0.62 AML other m 2019-10-17T19:19:49.44
IV.CAMP.HHE. ML:0.9 0.00009944999999999999 0.58 AML other m 2019-10-17T19:19:49.49
IV.RM33.EHE. ML:1.3 0.0002155 0.96 AML other m 2019-10-17T19:19:50.73
IV.RM33.EHN. ML:1.2 0.0001985 0.72 AML other m 2019-10-17T19:19:50.52
IV.MTRA.EHE. ML:1.0 0.0000726 0.46 AML other m 2019-10-17T19:19:52.32
IV.MTRA.EHN. ML:1.0 0.0000703 0.38 AML other m 2019-10-17T19:19:52.37
IV.TERO.HHE. ML:0.8 0.0000344 1.16 AML other m 2019-10-17T19:19:53.15
IV.TERO.HHN. ML:1.0 0.0000538 0.2 AML other m 2019-10-17T19:19:53.86
IV.NRCA.HHE. ML:0.9 0.000034750000000000004 1.86 AML other m 2019-10-17T19:19:57.01
IV.NRCA.HHN. ML:0.7 0.0000237 0.12 AML other m 2019-10-17T19:19:57.15
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