Earthquake with magnitude of ML 1.0 on date 22-02-2017 and time 17:06:26 (Italy) in region 4 km E Ussita (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km E Ussita (MC), on

  • 22-02-2017 16:06:26 (UTC)
  • 22-02-2017 17:06:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.93, 13.18 at 16 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
Ussita MC 4 444 444
Castelsantangelo sul Nera MC 5 281 725
Bolognola MC 8 142 867
Visso MC 8 1107 1974
Acquacanina MC 11 121 2095
Fiastra MC 12 559 2654
Montemonaco AP 12 604 3258
Montefortino FM 13 1178 4436
Preci PG 13 724 5160
Fiordimonte MC 14 202 5362
Sarnano MC 15 3264 8626
Amandola FM 15 3629 12255
Montegallo AP 16 523 12778
Monte Cavallo MC 16 145 12923
Pieve Torina MC 16 1458 14381
Pievebovigliana MC 17 866 15247
Norcia PG 17 4957 20204
Comunanza AP 19 3166 23370
Gualdo MC 20 815 24185

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
99 Km NW of Pescara (121014 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 2017-02-22
16:06:26
42.93 13.18 16 2017-02-22
16:24:01
Sala Sismica INGV-Roma 41487751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-02-22 16:06:26 ± 0.06
Latitude 42.93 ± 0.00
Longitude 13.18 ± 0.00
Depth (km) 16 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 41487751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 271
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.43797
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 41487751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-02-22 16:24:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2017-02-22T16:06:42.24 0.1 undecidable manual S 135 0.438 98 0.16 89
IV.T1215.EHZ. 2017-02-22T16:06:37.01 0.1 undecidable manual S 240 0.2662 105 -0.08 94
IV.CESI.HHZ. 2017-02-22T16:06:36.00 0.3 undecidable manual S 289 0.2167 111 0.32 68
IV.TERO.HHZ. 2017-02-22T16:06:35.13 1.0 undecidable manual P 135 0.438 98 -0.39 21
IV.T1212.EHZ. 2017-02-22T16:06:35.37 0.1 undecidable manual S 209 0.2086 112 -0.1 95
IV.SNTG.HHZ. 2017-02-22T16:06:35.10 3.0 undecidable manual P 0.59 0
IV.T1219.EHZ. 2017-02-22T16:06:34.73 0.1 undecidable manual S 313 0.179 117 0.07 96
IV.T1214.EHZ. 2017-02-22T16:06:34.61 0.3 undecidable manual S 174 0.1754 117 0.05 72
IV.FDMO.HHZ. 2017-02-22T16:06:33.24 0.1 undecidable manual S 325 0.125 130 -0.07 96
IV.T1216.EHZ. 2017-02-22T16:06:33.39 0.1 undecidable manual S 250 0.1286 129 -0.01 98
IV.T1215.EHZ. 2017-02-22T16:06:32.60 0.6 positive manual P 240 0.2662 105 -0.04 47
IV.T1241.EHZ. 2017-02-22T16:06:31.24 3.0 negative manual P 0.07 0
IV.CESI.HHZ. 2017-02-22T16:06:31.65 1.0 undecidable manual P 289 0.2167 111 -0.18 23
IV.MC2.EHZ. 2017-02-22T16:06:31.70 0.1 undecidable manual S 171 0.0225 169 -0.03 100
IV.T1219.EHZ. 2017-02-22T16:06:31.30 1.0 undecidable manual P 313 0.179 117 0.06 24
IV.T1214.EHZ. 2017-02-22T16:06:31.18 1.0 undecidable manual P 174 0.1754 117 -0.01 24
IV.T1212.EHZ. 2017-02-22T16:06:31.64 0.6 positive manual P 209 0.2086 112 -0.07 48
IV.CSP1.EHZ. 2017-02-22T16:06:30.57 3.0 undecidable manual P -0.36 0
IV.FDMO.HHZ. 2017-02-22T16:06:30.49 0.3 positive manual P 325 0.125 130 0.03 73
IV.T1216.EHZ. 2017-02-22T16:06:30.50 0.3 positive manual P 250 0.1286 129 -0.01 73
IV.MMO1.EHZ. 2017-02-22T16:06:29.99 1.0 undecidable manual P 108 0.1097 134 -0.29 23
IV.MC2.EHZ. 2017-02-22T16:06:29.54 1.0 undecidable manual P 171 0.0225 169 -0.01 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 6.255E-5 0.3 AML other m 2017-02-22T16:06:36.38
IV.CESI.HHN. ML:1 5.85E-5 0.42 AML other m 2017-02-22T16:06:36.66
IV.FDMO.HHE. ML:0.8 5.66E-5 0.18 AML other m 2017-02-22T16:06:33.27
IV.FDMO.HHN. ML:1 8.0E-5 0.18 AML other m 2017-02-22T16:06:33.53
IV.TERO.HHN. ML:1.1 3.04E-5 0.56 AML other m 2017-02-22T16:06:43.21
IV.TERO.HHE. ML:1 2.635E-5 0.46 AML other m 2017-02-22T16:06:43.49
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