Earthquake with magnitude of ML 1.0 on date 09-02-2017 and time 00:41:29 (Italy) in region 3 km SE Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 3 km SE Amatrice (RI), on

  • 08-02-2017 23:41:29 (UTC)
  • 09-02-2017 00:41:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.61, 13.32 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.

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 3 2657 2657
Campotosto AQ 7 542 3199
Capitignano AQ 10 665 3864
Montereale AQ 11 2581 6445
Accumoli RI 11 667 7112
Cittareale RI 13 482 7594
Crognaleto TE 15 1297 8891
Cortino TE 16 656 9547
Barete AQ 18 737 10284
Cagnano Amiterno AQ 18 1369 11653
Borbona RI 18 617 12270
Arquata del Tronto AP 19 1178 13448
Pizzoli AQ 19 4326 17774
Fano Adriano TE 19 296 18070
Rocca Santa Maria TE 20 537 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)
63 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
76 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
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 1.0 2017-02-08
23:41:29
42.61 13.32 10 2017-02-08
23:59:43
Sala Sismica INGV-Roma 40750561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-08 23:41:29 ± 0.06
Latitude 42.61 ± 0.00
Longitude 13.32 ± 0.00
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 40750561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 506
Semi-minor axis of confidence ellipse (meter) 378
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 204
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49013
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 40750561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-08 23:59:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2017-02-08T23:41:47.53 0.6 undecidable manual S 351 0.4901 50 0.56 42
IV.T1211.EHZ. 2017-02-08T23:41:42.36 0.3 undecidable manual S 258 0.3471 50 -0.36 68
IV.NRCA.HHZ. 2017-02-08T23:41:40.08 0.3 undecidable manual S 327 0.2698 50 -0.35 69
IV.T1217.EHZ. 2017-02-08T23:41:40.95 0.3 undecidable manual S 290 0.3004 50 -0.4 68
IV.FDMO.HHZ. 2017-02-08T23:41:39.42 0.1 undecidable manual P 339 0.4596 50 0.27 90
IV.CSP1.EHZ. 2017-02-08T23:41:39.87 0.3 undecidable manual P 351 0.4901 50 0.19 68
IV.TERO.HHZ. 2017-02-08T23:41:38.20 0.3 undecidable manual S 86 0.2131 113 -0.37 69
IV.ARRO.EHZ. 2017-02-08T23:41:38.42 3.0 positive manual P -0.58 0
IV.T1211.EHZ. 2017-02-08T23:41:37.38 0.3 undecidable manual P 258 0.3471 50 0.17 71
IV.T1247.HHE. 2017-02-08T23:41:37.07 0.6 undecidable manual S 184 0.1664 118 0.1 49
IV.T1217.EHZ. 2017-02-08T23:41:36.60 0.3 undecidable manual P 290 0.3004 50 0.17 71
IV.T1218.EHZ. 2017-02-08T23:41:36.62 0.3 undecidable manual S 293 0.1601 119 -0.12 74
IV.NRCA.HHZ. 2017-02-08T23:41:35.83 0.1 undecidable manual P 327 0.2698 50 -0.07 98
IV.T1247.HHE. 2017-02-08T23:41:34.06 0.1 undecidable manual P 184 0.1664 118 0.16 98
IV.TERO.HHZ. 2017-02-08T23:41:34.68 0.1 undecidable manual P 86 0.2131 113 -0.15 97
IV.CAMP.HHZ. 2017-02-08T23:41:34.63 0.3 undecidable manual S 136 0.0998 132 -0.2 73
IV.T1218.EHZ. 2017-02-08T23:41:33.87 0.1 undecidable manual P 293 0.1601 119 0.1 99
IV.SMA1.EHZ. 2017-02-08T23:41:33.17 0.3 undecidable manual S 33 0.027 163 -0.09 76
IV.T1299.EHZ. 2017-02-08T23:41:33.19 0.3 undecidable manual S 317 0.036 158 -0.19 75
IV.CAMP.HHZ. 2017-02-08T23:41:32.83 0.1 undecidable manual P 136 0.0998 132 0.16 99
IV.T1299.EHZ. 2017-02-08T23:41:31.99 0.1 undecidable manual P 317 0.036 158 0.17 100
IV.SMA1.EHZ. 2017-02-08T23:41:31.93 0.1 undecidable manual P 33 0.027 163 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.0001008 0.16 AML other m 2017-02-08T23:41:40.73
IV.NRCA.HHN. ML:1.3 9.13E-5 1.02 AML other m 2017-02-08T23:41:42.63
IV.T1211.EHE. ML:0.9 3.1161716E-5 1.088 AML other m 2017-02-08T23:41:42.60
IV.T1211.EHN. ML:1.2 5.3776355E-5 1.7024 AML other m 2017-02-08T23:41:43.18
IV.T1218.EHN. ML:0.8 5.512965E-5 1.344 AML other m 2017-02-08T23:41:37.47
IV.T1218.EHE. ML:0.7 3.8210365E-5 0.6016 AML other m 2017-02-08T23:41:36.56
IV.T1299.EHN. ML:1.1 0.000237 0.48 AML other m 2017-02-08T23:41:33.63
IV.TERO.HHN. ML:1.1 7.457998E-5 0.5888 AML other m 2017-02-08T23:41:39.21
IV.TERO.HHE. ML:0.8 3.3719995E-5 0.7424 AML other m 2017-02-08T23:41:38.30
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