Earthquake with magnitude of ML 1.3 on date 19-02-2021 and time 15:45:37 (UTC) in region 2 km SE Ussita (MC)

A magnitude ML 1.3 earthquake occured in region: 2 km SE Ussita (MC), on

  • 19-02-2021 15:45:37 (UTC)
  • 19-02-2021 16:45:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.93, 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
Ussita MC 3 444 444
Castelsantangelo sul Nera MC 4 281 725
Visso MC 6 1107 1832
Bolognola MC 10 142 1974
Preci PG 11 724 2698
Acquacanina MC 12 121 2819
Fiastra MC 12 559 3378
Fiordimonte MC 14 202 3580
Montemonaco AP 14 604 4184
Monte Cavallo MC 15 145 4329
Montefortino FM 15 1178 5507
Pieve Torina MC 16 1458 6965
Norcia PG 16 4957 11922
Pievebovigliana MC 16 866 12788
Sarnano MC 17 3264 16052
Montegallo AP 17 523 16575
Amandola FM 17 3629 20204
Sellano PG 19 1079 21283
Muccia MC 20 915 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
66 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 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
Reviewed
Rev100
ML 1.3 2021-02-19
15:45:37
42.93 13.16 11 2021-02-19
15:51:12
Sala Sismica INGV-Roma 87301121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-19 15:45:37 ± 0.06
Latitude 42.93 ± 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 87301121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 441
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
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) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.44696
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 87301121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-19 15:51:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRTC.HHZ. 2021-02-19T15:46:01.78 1.0 undecidable manual S -0.62 0.36
IV.TERO.HHZ. 2021-02-19T15:45:53.68 0.6 undecidable manual S 133 0.447 50 0.06 46
IV.ASSB.HHZ. 2021-02-19T15:45:51.78 0.6 undecidable manual S 288 0.3822 50 0.09 47
IV.CRTC.HHZ. 2021-02-19T15:45:49.31 0.6 undecidable manual P -0.67 0.72
IV.TERO.HHZ. 2021-02-19T15:45:46.88 1.0 undecidable manual P 133 0.447 50 -0.07 23
IV.CESI.HHZ. 2021-02-19T15:45:46.35 0.3 undecidable manual S 293 0.2005 50 0.05 73
IV.ASSB.HHZ. 2021-02-19T15:45:45.75 0.3 undecidable manual P 288 0.3822 50 -0.08 70
IV.CSP1.EHZ. 2021-02-19T15:45:45.28 0.3 undecidable manual S 12 0.1691 120 -0.04 74
IV.MNTT.EHZ. 2021-02-19T15:45:45.26 3.0 undecidable manual S 0
IV.FDMO.HHZ. 2021-02-19T15:45:43.58 0.6 undecidable manual S 335 0.1205 129 -0.2 48
IV.MMO1.EHZ. 2021-02-19T15:45:43.77 0.3 undecidable manual S 102 0.1277 127 -0.22 72
IV.NRCA.HHZ. 2021-02-19T15:45:42.84 0.3 undecidable manual S 198 0.098 135 -0.28 71
IV.CSP1.EHZ. 2021-02-19T15:45:42.18 0.3 undecidable manual P 12 0.1691 120 0.03 74
IV.CESI.HHZ. 2021-02-19T15:45:42.71 0.1 positive manual P 293 0.2005 50 -0.01 99
IV.MC2.EHZ. 2021-02-19T15:45:41.91 0.3 undecidable manual S 122 0.0279 164 0.22 73
IV.MNTT.EHZ. 2021-02-19T15:45:41.08 3.0 undecidable manual P 0.22 0
IV.FDMO.HHZ. 2021-02-19T15:45:41.30 0.3 negative manual P 335 0.1205 129 0.03 75
IV.MMO1.EHZ. 2021-02-19T15:45:41.38 0.1 undecidable manual P 102 0.1277 127 0 100
IV.MC2.EHZ. 2021-02-19T15:45:40.33 0.1 negative manual P 122 0.0279 164 0.27 97
IV.NRCA.HHZ. 2021-02-19T15:45:40.92 0.1 positive manual P 198 0.098 135 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.6 0.0004727105 0.0768 AML other m 2021-02-19T15:45:42.93
IV.NRCA.HHE. ML:1.6 0.00044811455 0.1792 AML other m 2021-02-19T15:45:42.96
IV.FDMO.HHN. ML:0 0.000100574075 0.1792 AML other m 2021-02-19T15:45:43.92
IV.FDMO.HHE. ML:0 8.4993965E-5 0.1408 AML other m 2021-02-19T15:45:44.35
IV.CESI.HHN. ML:1.2 0.0001071 0.24 AML other m 2021-02-19T15:45:46.63
IV.CESI.HHE. ML:0.9 4.8067504E-5 0.1152 AML other m 2021-02-19T15:45:46.62
IV.ASSB.HHN. ML:0.9 2.690394E-5 0.1024 AML other m 2021-02-19T15:45:52.04
IV.ASSB.HHE. ML:0.8 2.11780025E-5 0.1408 AML other m 2021-02-19T15:45:52.77
IV.NRCA.HNE. ML:1.6 0.00041678925 0.1664 AML other m 2021-02-19T15:45:42.97
IV.NRCA.HNN. ML:1.6 0.00042293285 0.0768 AML other m 2021-02-19T15:45:42.89
IV.MNTT.EHE. ML:2.1 0.0004660738 0.1792 AML other m 2021-02-19T15:45:45.95
IV.MNTT.EHN. ML:1.9 0.0002748524 0.2688 AML other m 2021-02-19T15:45:45.29
IV.CESI.HNE. ML:1.3 0.000141009525 0.704 AML other m 2021-02-19T15:45:55.06
IV.CESI.HNN. ML:1.3 0.0001344094 0.9216 AML other m 2021-02-19T15:45:42.43
IV.CRTC.HHE. ML:1.7 5.141224E-5 0.1792 AML other m 2021-02-19T15:45:55.80
IV.CRTC.HHN. ML:1.7 5.1800231E-5 0.4608 AML other m 2021-02-19T15:46:12.24
IV.CRTC.HNE. ML:3.8 0.0072749085 0.9088 AML other m 2021-02-19T15:46:09.25
IV.CRTC.HNN. ML:3.8 0.0061383865 0.6144 AML other m 2021-02-19T15:45:54.44
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