Earthquake with magnitude of ML 1.3 on date 09-02-2017 and time 03:39:18 (Italy) in region 2 km SW Amatrice (RI)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Amatrice (RI), on

  • 09-02-2017 02:39:18 (UTC)
  • 09-02-2017 03:39:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.27 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.

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 2 2657 2657
Accumoli RI 9 667 3324
Cittareale RI 9 482 3806
Campotosto AQ 10 542 4348
Montereale AQ 10 2581 6929
Capitignano AQ 11 665 7594
Borbona RI 16 617 8211
Arquata del Tronto AP 18 1178 9389
Posta RI 18 694 10083
Cagnano Amiterno AQ 18 1369 11452
Barete AQ 18 737 12189
Crognaleto TE 19 1297 13486
Cortino TE 19 656 14142
Pizzoli AQ 20 4326 18468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.3 2017-02-09
02:39:18
42.62 13.27 11 2017-02-09
02:47:00
Sala Sismica INGV-Roma 40755381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-09 02:39:18 ± 0.07
Latitude 42.62 ± 0.01
Longitude 13.27 ± 0.00
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 40755381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 920
Semi-minor axis of confidence ellipse (meter) 404
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.34984
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 40755381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-09 02:47:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T1211.EHZ. 2017-02-09T02:39:30.83 0.3 undecidable manual S 255 0.3184 50 -0.14 69
IV.T1217.EHZ. 2017-02-09T02:39:29.57 0.3 undecidable manual S 291 0.2689 50 0.08 71
IV.TERO.HHZ. 2017-02-09T02:39:28.40 0.3 undecidable manual S 88 0.2437 50 -0.35 67
IV.LNSS.HHZ. 2017-02-09T02:39:26.57 0.3 undecidable manual S 266 0.1718 119 -0.01 73
IV.T1215.EHZ. 2017-02-09T02:39:26.69 1.0 negative manual P 302 0.3498 50 0.24 23
IV.T1216.EHZ. 2017-02-09T02:39:26.46 3.0 negative manual P -0.01 0
IV.T1217.EHZ. 2017-02-09T02:39:25.28 0.3 undecidable manual P 291 0.2689 50 0.22 69
IV.T1211.EHZ. 2017-02-09T02:39:25.89 0.3 undecidable manual P 255 0.3184 50 -0.02 71
IV.T1218.EHZ. 2017-02-09T02:39:25.22 0.3 undecidable manual S 295 0.1277 127 0.06 73
IV.T1241.EHZ. 2017-02-09T02:39:25.19 0.1 undecidable manual P 26 0.2662 50 0.17 93
IV.NRCA.HHZ. 2017-02-09T02:39:24.95 3.0 undecidable manual P 0.03 0
IV.TERO.HHZ. 2017-02-09T02:39:24.58 0.1 undecidable manual P 88 0.2437 50 -0.05 96
IV.T1247.HHN. 2017-02-09T02:39:23.54 0.3 undecidable manual P 174 0.1754 119 0.09 72
IV.LNSS.HHZ. 2017-02-09T02:39:23.52 0.1 undecidable manual P 266 0.1718 119 0.14 95
IV.SMA1.EHZ. 2017-02-09T02:39:23.16 0.1 undecidable manual S 73 0.0477 154 0.01 100
IV.T1299.EHZ. 2017-02-09T02:39:22.52 0.1 undecidable manual S 21 0.0189 169 -0.27 95
IV.CAMP.HHE. 2017-02-09T02:39:22.59 0.3 undecidable manual P 129 0.1286 127 0.02 74
IV.T1218.EHZ. 2017-02-09T02:39:21.60 0.3 undecidable manual P 295 0.1277 127 -0.96 55
IV.SMA1.EHZ. 2017-02-09T02:39:21.75 0.1 undecidable manual P 73 0.0477 154 0.36 93
IV.T1299.EHZ. 2017-02-09T02:39:21.37 0.1 undecidable manual P 21 0.0189 169 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.2 0.00012615 0.94 AML other m 2017-02-09T02:39:26.32
IV.LNSS.HHE. ML:1.1 0.0001069 0.14 AML other m 2017-02-09T02:39:27.39
IV.NRCA.HHE. ML:1.4 0.000133 1.9 AML other m 2017-02-09T02:39:29.01
IV.NRCA.HHN. ML:1.2 7.985E-5 0.1 AML other m 2017-02-09T02:39:30.67
IV.SMA1.EHN. ML:1.7 0.00071 0.46 AML other m 2017-02-09T02:39:23.48
IV.SMA1.EHE. ML:1.8 0.0009065 0.48 AML other m 2017-02-09T02:39:23.54
IV.T1299.HNE. ML:1.2 0.0002465 0.28 AML other m 2017-02-09T02:39:22.91
IV.T1299.HNN. ML:1.2 0.000303 0.94 AML other m 2017-02-09T02:39:23.60
IV.T1299.EHE. ML:1.1 0.0002295 0.34 AML other m 2017-02-09T02:39:22.60
IV.T1299.EHN. ML:1.2 0.0002845 0.44 AML other m 2017-02-09T02:39:22.82
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download