Earthquake with magnitude of ML 1.3 on date 20-02-2017 and time 23:43:38 (Italy) in region 3 km SE Amatrice (RI)

A magnitude ML 1.3 earthquake occured in region: 3 km SE Amatrice (RI), on

  • 20-02-2017 22:43:38 (UTC)
  • 20-02-2017 23:43:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.61, 13.32 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 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)
33 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 1.3 2017-02-20
22:43:38
42.61 13.32 11 2017-02-20
22:53:22
Sala Sismica INGV-Roma 41397251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-20 22:43:38 ± 0.04
Latitude 42.61 ± 0.00
Longitude 13.32 ± 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 41397251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 286
Semi-minor axis of confidence ellipse (meter) 214
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35703
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 41397251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-20 22:53:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2017-02-20T22:43:59.60 3.0 undecidable manual S -0.28 0
IV.CSP1.EHZ. 2017-02-20T22:43:57.04 3.0 undecidable manual S 0.16 0
IV.T1216.EHZ. 2017-02-20T22:43:52.19 0.1 undecidable manual S 323 0.357 50 0.29 90
IV.MC2.EHZ. 2017-02-20T22:43:50.65 0.3 undecidable manual S 343 0.3175 50 -0.09 71
IV.T1217.EHZ. 2017-02-20T22:43:50.12 0.1 undecidable manual S 290 0.3004 50 -0.12 94
IV.T1241.EHZ. 2017-02-20T22:43:49.13 0.1 undecidable manual S 19 0.2626 50 0.01 97
IV.T1220.EHZ. 2017-02-20T22:43:49.70 3.0 undecidable manual P 0.01 0
IV.NRCA.HHZ. 2017-02-20T22:43:49.24 0.1 undecidable manual S 327 0.2698 50 -0.08 95
IV.T1219.EHZ. 2017-02-20T22:43:49.18 3.0 undecidable manual P -0.02 0
IV.T1222.EHZ. 2017-02-20T22:43:49.77 0.1 undecidable manual S 225 0.2905 50 -0.16 93
IV.T1212.EHZ. 2017-02-20T22:43:48.33 0.1 undecidable manual S 306 0.2455 50 -0.27 92
IV.GIGS.HHZ. 2017-02-20T22:43:48.20 0.3 undecidable manual S 129 0.2446 50 -0.37 67
IV.GUMA.HHZ. 2017-02-20T22:43:48.81 3.0 negative manual P 0.46 0
IV.LNSS.HHZ. 2017-02-20T22:43:47.15 0.1 undecidable manual S 269 0.2023 50 -0.17 95
IV.ARRO.EHZ. 2017-02-20T22:43:47.29 3.0 negative manual P -0.15 0
IV.TERO.HHZ. 2017-02-20T22:43:47.39 0.1 undecidable manual S 86 0.2131 50 -0.25 93
IV.T1216.EHZ. 2017-02-20T22:43:46.64 0.1 undecidable manual P 323 0.357 50 0.28 90
IV.MC2.EHZ. 2017-02-20T22:43:46.24 0.3 undecidable manual P 343 0.3175 50 0.56 63
IV.T1247.HHZ. 2017-02-20T22:43:46.22 0.1 undecidable manual S 184 0.1664 120 0.04 98
IV.T1215.EHZ. 2017-02-20T22:43:46.84 3.0 undecidable manual P -0.11 0
IV.T1211.EHZ. 2017-02-20T22:43:46.22 3.0 positive manual P -0.15 0
IV.T1222.EHZ. 2017-02-20T22:43:45.24 0.1 undecidable manual P 225 0.2905 50 0.02 96
IV.T1217.EHZ. 2017-02-20T22:43:45.44 0.1 undecidable manual P 290 0.3004 50 0.04 95
IV.T1218.EHZ. 2017-02-20T22:43:45.67 0.1 undecidable manual S 293 0.1601 121 -0.29 93
IV.NRCA.HHZ. 2017-02-20T22:43:45.03 0.1 undecidable manual P 327 0.2698 50 0.16 94
IV.T1214.EHZ. 2017-02-20T22:43:45.97 0.1 undecidable manual S 333 0.1709 119 -0.37 91
IV.T1212.EHZ. 2017-02-20T22:43:44.44 0.1 undecidable manual P 306 0.2455 50 -0.01 97
IV.RM33.EHZ. 2017-02-20T22:43:44.77 0.1 undecidable manual S 217 0.1232 128 -0.02 99
IV.GIGS.HHZ. 2017-02-20T22:43:44.40 0.3 undecidable manual P 129 0.2446 50 -0.04 72
IV.T1241.EHZ. 2017-02-20T22:43:44.74 0.1 undecidable manual P 19 0.2626 50 -0.01 97
IV.T1246.HHE. 2017-02-20T22:43:44.86 0.1 undecidable manual S 100 0.1331 126 -0.25 94
IV.T1247.HHZ. 2017-02-20T22:43:43.29 0.1 undecidable manual P 184 0.1664 120 0.24 94
IV.T1214.EHZ. 2017-02-20T22:43:43.43 0.1 undecidable manual P 333 0.1709 119 0.29 93
IV.LNSS.HHZ. 2017-02-20T22:43:43.82 0.1 undecidable manual P 269 0.2023 50 0.11 96
IV.TERO.HHZ. 2017-02-20T22:43:43.98 0.1 negative manual P 86 0.2131 50 0.08 96
IV.CAMP.HHZ. 2017-02-20T22:43:43.92 0.1 undecidable manual S 136 0.0998 134 -0.19 96
IV.T1246.HHE. 2017-02-20T22:43:42.64 0.1 undecidable manual P 100 0.1331 126 0.21 95
IV.CAMP.HHZ. 2017-02-20T22:43:42.07 0.1 undecidable manual P 136 0.0998 134 0.21 96
IV.T1299.EHZ. 2017-02-20T22:43:42.42 0.1 undecidable manual S 318 0.036 159 -0.31 95
IV.RM33.EHZ. 2017-02-20T22:43:42.48 0.1 undecidable manual P 217 0.1232 128 0.22 95
IV.SMA1.EHZ. 2017-02-20T22:43:42.57 0.1 undecidable manual S 33 0.0279 164 -0.06 100
IV.T1218.EHZ. 2017-02-20T22:43:42.96 0.1 undecidable manual P 293 0.1601 121 0.04 98
IV.SMA1.EHZ. 2017-02-20T22:43:41.25 0.1 positive manual P 33 0.0279 164 0.25 96
IV.T1299.EHZ. 2017-02-20T22:43:41.24 0.1 undecidable manual P 318 0.036 159 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHN. ML:1.1 0.000139 0.58 AML other m 2017-02-20T22:43:44.09
IV.CAMP.HHE. ML:1.2 0.000207 0.56 AML other m 2017-02-20T22:43:44.46
IV.GIGS.HHE. ML:0.7 2.635E-5 0.26 AML other m 2017-02-20T22:43:48.44
IV.GIGS.HHN. ML:0.4 1.7225E-5 0.34 AML other m 2017-02-20T22:43:49.24
IV.GUMA.HHN. ML:1.4 6.26E-5 1.44 AML other m 2017-02-20T22:43:57.88
IV.GUMA.HHE. ML:1.4 6.74E-5 1.38 AML other m 2017-02-20T22:44:01.79
IV.LNSS.HHN. ML:1.4 0.000173 0.36 AML other m 2017-02-20T22:43:47.64
IV.LNSS.HHE. ML:1.4 0.000143 0.62 AML other m 2017-02-20T22:43:47.39
IV.MOMA.HHN. ML:1.4 4.54E-5 0.18 AML other m 2017-02-20T22:44:00.75
IV.MOMA.HHE. ML:1.3 3.55E-5 0.42 AML other m 2017-02-20T22:44:00.39
IV.NRCA.HHN. ML:1.7 0.0002635 0.12 AML other m 2017-02-20T22:43:49.50
IV.NRCA.HHE. ML:1.7 0.0002535 0.12 AML other m 2017-02-20T22:43:49.93
IV.RM33.EHN. ML:1.4 0.0002585 1.7 AML other m 2017-02-20T22:43:45.89
IV.RM33.HNN. ML:1.4 0.000274 0.4 AML other m 2017-02-20T22:43:46.23
IV.RM33.EHE. ML:1.5 0.0003075 1.64 AML other m 2017-02-20T22:43:44.08
IV.RM33.HNE. ML:1.5 0.000339 1.66 AML other m 2017-02-20T22:43:44.07
IV.SMA1.EHN. ML:2.1 0.00211 1.46 AML other m 2017-02-20T22:43:42.79
IV.SMA1.EHE. ML:2.6 0.00602 0.28 AML other m 2017-02-20T22:43:42.81
IV.T1212.EHN. ML:1.1 7.055E-5 0.48 AML other m 2017-02-20T22:43:48.99
IV.T1212.EHE. ML:1.2 7.675E-5 0.58 AML other m 2017-02-20T22:43:49.29
IV.T1214.EHN. ML:0.9 6.265E-5 1.16 AML other m 2017-02-20T22:43:53.33
IV.T1214.EHE. ML:1 8.1305E-5 0.44 AML other m 2017-02-20T22:43:54.48
IV.T1218.EHN. ML:1.4 0.000197 0.24 AML other m 2017-02-20T22:43:46.11
IV.T1218.EHE. ML:1.1 0.000109 0.44 AML other m 2017-02-20T22:43:47.26
IV.T1241.EHN. ML:0.9 4.175E-5 0.46 AML other m 2017-02-20T22:43:50.72
IV.T1241.EHE. ML:1 4.295E-5 0.46 AML other m 2017-02-20T22:43:51.94
IV.T1247.HHE. ML:1.4 0.000214 0.44 AML other m 2017-02-20T22:43:47.41
IV.T1247.HHN. ML:1.6 0.000324 0.2 AML other m 2017-02-20T22:43:46.43
IV.T1299.HNE. ML:1.8 0.0009555 0.14 AML other m 2017-02-20T22:43:42.50
IV.T1299.EHE. ML:1.8 0.0009835 0.16 AML other m 2017-02-20T22:43:42.50
IV.T1299.HNN. ML:1.9 0.00132 0.14 AML other m 2017-02-20T22:43:42.57
IV.T1299.EHN. ML:1.9 0.00132 0.14 AML other m 2017-02-20T22:43:42.58
IV.TERO.HHN. ML:1.3 0.000118 0.16 AML other m 2017-02-20T22:43:47.84
IV.TERO.HHE. ML:1.3 0.000121 0.38 AML other m 2017-02-20T22:43:49.60
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