Earthquake with magnitude of ML 1.4 on date 22-02-2017 and time 00:32:38 (Italy) in region 8 km W Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 8 km W Accumoli (RI), on

  • 21-02-2017 23:32:38 (UTC)
  • 22-02-2017 00:32:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.71, 13.16 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
Accumoli RI 8 667 667
Cittareale RI 10 482 1149
Norcia PG 10 4957 6106
Cascia PG 12 3217 9323
Arquata del Tronto AP 14 1178 10501
Amatrice RI 14 2657 13158
Monteleone di Spoleto PG 18 599 13757
Poggiodomo PG 18 117 13874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of L'Aquila (69753 inhabitants)
45 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
91 Km W of Pescara (121014 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
92 Km W of Chieti (51815 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 1.4 2017-02-21
23:32:38
42.71 13.16 11 2017-02-21
23:38:24
Sala Sismica INGV-Roma 41451141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-21 23:32:38 ± 0.03
Latitude 42.71 ± 0.00
Longitude 13.16 ± 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 41451141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 190
Semi-minor axis of confidence ellipse (meter) 19
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 190
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.402
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 22
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 41451141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-21 23:38:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PCRO.HNZ. 2017-02-21T23:33:09.93 3.0 undecidable manual S -0.41 0
IV.T1219.EHZ. 2017-02-21T23:32:51.82 3.0 undecidable manual S -0.56 0
IV.SNTG.HHZ. 2017-02-21T23:32:50.11 3.0 undecidable manual P 0.28 0
IV.CAMP.HHZ. 2017-02-21T23:32:48.39 0.3 undecidable manual S 133 0.2554 91 -0.21 69
IV.OFFI.HHZ. 2017-02-21T23:32:48.58 3.0 positive manual P 0.67 0
IV.RM33.EHZ. 2017-02-21T23:32:47.05 0.1 undecidable manual S 168 0.2068 92 -0.11 96
IV.T1215.EHZ. 2017-02-21T23:32:47.79 0.1 undecidable manual S 293 0.2293 91 -0.04 97
IV.MMO1.EHZ. 2017-02-21T23:32:47.68 0.3 undecidable manual S 34 0.2257 91 -0.04 72
IV.FIAM.HHZ. 2017-02-21T23:32:46.97 3.0 positive manual P -0.59 0
IV.T1217.EHZ. 2017-02-21T23:32:46.04 0.3 undecidable manual S 270 0.1655 93 0.12 72
IV.GUMA.HHZ. 2017-02-21T23:32:46.81 0.3 positive manual P 20 0.375 91 0.41 65
IV.T1220.EHZ. 2017-02-21T23:32:46.94 0.1 undecidable manual P 353 0.402 91 0.08 92
IV.GIGS.HHZ. 2017-02-21T23:32:46.81 3.0 negative manual P -0.16 0
IV.SMA1.EHZ. 2017-02-21T23:32:45.79 0.3 undecidable manual S 121 0.1547 94 0.18 71
IV.FDMO.HHZ. 2017-02-21T23:32:45.56 0.3 undecidable manual P 351 0.3292 91 -0.05 71
IV.TERO.HHZ. 2017-02-21T23:32:45.49 3.0 undecidable manual P -0.48 0
IV.CESI.HHE. 2017-02-21T23:32:45.93 0.3 undecidable manual P 328 0.3462 91 0.01 71
IV.ARRO.EHZ. 2017-02-21T23:32:45.33 0.1 undecidable manual P 245 0.3157 91 -0.07 94
IV.NRCA.HHZ. 2017-02-21T23:32:44.49 0.1 undecidable manual S 346 0.1259 102 -0.28 93
IV.T1247.HHZ. 2017-02-21T23:32:44.90 0.6 negative manual P 159 0.2896 91 -0.04 48
IV.T1241.EHZ. 2017-02-21T23:32:44.07 0.3 undecidable manual P 54 0.2482 91 -0.17 70
IV.CAMP.HHZ. 2017-02-21T23:32:44.22 0.1 undecidable manual P 133 0.2554 91 -0.14 94
IV.T1211.EHZ. 2017-02-21T23:32:44.80 0.3 undecidable manual P 231 0.2842 91 -0.05 71
IV.T1212.EHZ. 2017-02-21T23:32:43.71 0.3 undecidable manual S 296 0.0908 121 -0.11 73
IV.RM33.EHZ. 2017-02-21T23:32:43.43 0.3 positive manual P 168 0.2068 92 -0.1 72
IV.T1216.EHZ. 2017-02-21T23:32:43.50 0.3 undecidable manual P 331 0.2059 92 -0.01 73
IV.T1215.EHZ. 2017-02-21T23:32:43.88 0.3 positive manual P 293 0.2293 91 -0.04 72
IV.MMO1.EHZ. 2017-02-21T23:32:43.79 0.1 undecidable manual P 34 0.2257 91 -0.06 96
IV.MC2.EHZ. 2017-02-21T23:32:43.55 0.1 negative manual P 7 0.2014 92 0.11 96
IV.T1214.EHZ. 2017-02-21T23:32:43.18 0.1 undecidable manual S 39 0.0621 138 0.03 100
IV.T1299.EHE. 2017-02-21T23:32:42.20 0.3 undecidable manual P 130 0.1205 105 0.14 72
IV.T1218.EHZ. 2017-02-21T23:32:42.88 0.1 undecidable manual S 216 0.0513 145 -0.07 99
IV.SMA1.EHZ. 2017-02-21T23:32:42.79 0.3 undecidable manual P 121 0.1547 94 0.16 72
IV.NRCA.HHZ. 2017-02-21T23:32:42.14 0.1 negative manual P 346 0.1259 102 -0.01 99
IV.T1217.EHZ. 2017-02-21T23:32:42.86 0.3 positive manual P 270 0.1655 93 0.05 73
IV.LNSS.HHZ. 2017-02-21T23:32:42.46 0.1 positive manual P 218 0.1376 97 0.11 96
IV.T1214.EHZ. 2017-02-21T23:32:41.29 0.1 undecidable manual P 39 0.0621 138 0.08 99
IV.T1212.EHZ. 2017-02-21T23:32:41.72 0.3 positive manual P 296 0.0908 121 0.12 73
IV.T1218.EHZ. 2017-02-21T23:32:41.22 0.1 undecidable manual P 216 0.0513 145 0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1 3.92E-5 0.48 AML other m 2017-02-21T23:32:51.22
IV.ARRO.EHN. ML:1 4.04E-5 0.64 AML other m 2017-02-21T23:32:52.38
IV.FIAM.HHN. ML:1 2.265E-5 0.58 AML other m 2017-02-21T23:32:54.15
IV.FIAM.HHE. ML:1.1 3.18E-5 0.36 AML other m 2017-02-21T23:32:54.61
IV.GUMA.HHN. ML:1.8 0.0002085 0.98 AML other m 2017-02-21T23:32:53.62
IV.GUMA.HHE. ML:1.7 0.000159 0.26 AML other m 2017-02-21T23:32:53.70
IV.LNSS.HHN. ML:1.6 0.0003345 0.64 AML other m 2017-02-21T23:32:45.61
IV.LNSS.HHE. ML:1.5 0.000306 1 AML other m 2017-02-21T23:32:45.49
IV.NRCA.HHE. ML:1.6 0.0003495 0.16 AML other m 2017-02-21T23:32:44.53
IV.NRCA.HHN. ML:1.6 0.000403 1.58 AML other m 2017-02-21T23:32:45.89
IV.OFFI.HHN. ML:1.6 9.795E-5 0.56 AML other m 2017-02-21T23:32:57.04
IV.OFFI.HHE. ML:1.6 9.785E-5 0.42 AML other m 2017-02-21T23:32:58.36
IV.RM33.EHN. ML:1.3 0.000124 0.26 AML other m 2017-02-21T23:32:48.26
IV.RM33.EHE. ML:1.2 9.815E-5 0.12 AML other m 2017-02-21T23:32:48.29
IV.SMA1.EHN. ML:1.4 0.0001975 1.56 AML other m 2017-02-21T23:32:46.93
IV.SMA1.EHE. ML:1.5 0.0002545 0.4 AML other m 2017-02-21T23:32:54.43
IV.T1211.EHE. ML:1.3 9.6E-5 1.62 AML other m 2017-02-21T23:32:50.08
IV.T1211.EHN. ML:1.3 9.065E-5 0.18 AML other m 2017-02-21T23:32:50.22
IV.T1212.EHE. ML:1.4 0.000299 1.82 AML other m 2017-02-21T23:32:43.93
IV.T1212.HNE. ML:1.4 0.0003075 1.84 AML other m 2017-02-21T23:32:43.93
IV.T1212.EHN. ML:1.5 0.0003445 0.16 AML other m 2017-02-21T23:32:43.90
IV.T1212.HNN. ML:1.5 0.000348 0.16 AML other m 2017-02-21T23:32:43.90
IV.T1214.HNE. ML:1.3 0.000254 0.34 AML other m 2017-02-21T23:32:44.07
IV.T1214.EHN. ML:1.1 0.000185 0.24 AML other m 2017-02-21T23:32:43.14
IV.T1214.HNN. ML:1.1 0.0001885 0.76 AML other m 2017-02-21T23:32:44.92
IV.T1214.EHE. ML:1.2 0.0002265 0.34 AML other m 2017-02-21T23:32:44.07
IV.T1217.EHE. ML:1.2 0.0001075 0.84 AML other m 2017-02-21T23:32:46.46
IV.T1217.EHN. ML:1.3 0.000168 0.14 AML other m 2017-02-21T23:32:46.06
IV.T1218.EHN. ML:2 0.00157 0.5 AML other m 2017-02-21T23:32:43.09
IV.T1218.EHE. ML:1.9 0.00106 0.44 AML other m 2017-02-21T23:32:43.05
IV.T1218.HNE. ML:1.9 0.00105 0.44 AML other m 2017-02-21T23:32:43.05
IV.T1218.HNN. ML:2 0.001525 0.48 AML other m 2017-02-21T23:32:43.09
IV.TERO.HHE. ML:1.2 5.72E-5 1 AML other m 2017-02-21T23:32:51.95
IV.TERO.HHN. ML:1.2 5.36E-5 0.68 AML other m 2017-02-21T23:32:52.44
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