INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.5 on date 20-02-2019 and time 09:44:51 (Italy) in region 6 km W Monte Cavallo (MC)

A magnitude ML 0.5 earthquake occured in region: 6 km W Monte Cavallo (MC), on

  • 20-02-2019 08:44:51 (UTC)
  • 20-02-2019 09:44:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43, 12.93 at 7 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
Monte Cavallo MC 6 145 145
Serravalle di Chienti MC 8 1070 1215
Pieve Torina MC 11 1458 2673
Sellano PG 12 1079 3752
Muccia MC 13 915 4667
Fiordimonte MC 14 202 4869
Pievebovigliana MC 14 866 5735
Visso MC 15 1107 6842
Valtopina PG 16 1398 8240
Preci PG 16 724 8964
Sefro MC 16 422 9386
Nocera Umbra PG 17 5839 15225
Ussita MC 18 444 15669
Camerino MC 19 6974 22643
Fiastra MC 19 559 23202
Foligno PG 19 57155 80357

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
94 Km S of Fano (60888 inhabitants)
99 Km SE of Arezzo (99543 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 0.5 2019-02-20
08:44:51
43 12.93 7 2019-02-20
08:58:30
Sala Sismica INGV-Roma 65726871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-20 08:44:51 ± 0.2
Latitude 43.00 ± 0.01
Longitude 12.93 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65726871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 909
Semi-minor axis of confidence ellipse (meter) 463
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 176
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5369
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 65726871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-20 08:58:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GMB.BHZ. 2019-02-20T08:46:39.14 3.0 undecidable manual Sn -6.38 0
RF.GEPF.HHZ. 2019-02-20T08:46:35.26 3.0 undecidable manual Sg 9.48 0
IV.IFIL.HHZ. 2019-02-20T08:46:17.75 3.0 undecidable manual Sn -9.31 0
IV.CLTA.HHZ. 2019-02-20T08:46:06.83 3.0 undecidable manual Pg 8.3 0
CH.BERNI.HHZ. 2019-02-20T08:45:49.29 3.0 negative manual Pn 0.27 0
IV.EUCT.HNZ. 2019-02-20T08:45:47.76 3.0 undecidable manual Pg 7.24 0
CR.ZAG.BHZ. 2019-02-20T08:45:44.40 3.0 undecidable manual Pn 0.84 0
IV.MSSA.HHZ. 2019-02-20T08:45:38.98 3.0 undecidable manual Pg 9.37 0
IV.FIR.HHZ. 2019-02-20T08:45:38.06 3.0 undecidable manual Sg 3.26 0
IV.NDIM.HHZ. 2019-02-20T08:45:33.79 3.0 undecidable manual Pg 7.2 0
IV.AGLI.HHZ. 2019-02-20T08:45:31.10 3.0 positive manual Pg 3.23 0
IV.SIRI.HHZ. 2019-02-20T08:45:29.76 3.0 undecidable manual Pn 0.23 0
IV.COR1.EHZ. 2019-02-20T08:45:27.78 3.0 undecidable manual Sg 6.58 0
IT.PLTA.HNZ. 2019-02-20T08:45:27.34 3.0 undecidable manual Sn 0.96 0
IV.SFI.EHZ. 2019-02-20T08:45:26.57 3.0 undecidable manual S -5.22 0
IV.FAGN.HHZ. 2019-02-20T08:45:04.75 3.0 undecidable manual S 1.89 0
IV.SNTG.HHZ. 2019-02-20T08:45:01.36 0.6 undecidable manual S 2 0.2536 103 0.08 48
IV.FRON.EHZ. 2019-02-20T08:45:00.79 3.0 undecidable manual P 0.5369 -1.65 0
IV.CSP1.EHZ. 2019-02-20T08:45:00.06 0.3 undecidable manual S 66 0.2194 105 0.05 72
IV.ASSB.HHZ. 2019-02-20T08:44:59.22 0.3 undecidable manual S 282 0.2032 106 -0.2 70
IV.CSP1.EHZ. 2019-02-20T08:44:56.01 1.0 negative manual P 66 0.2194 105 -0.3 23
IV.FDMO.HHZ. 2019-02-20T08:44:56.49 0.6 undecidable manual S 73 0.1196 117 0.09 49
IV.ASSB.HHZ. 2019-02-20T08:44:56.37 0.3 undecidable manual P 282 0.2032 106 0.4 67
IV.SNTG.HHZ. 2019-02-20T08:44:56.73 1.0 negative manual P 2 0.2536 103 -0.32 23
IV.MMO1.EHZ. 2019-02-20T08:44:54.54 3.0 undecidable manual S 0.3067 -8.76 0
IV.FDMO.HHZ. 2019-02-20T08:44:54.13 0.6 undecidable manual P 73 0.1196 117 -0.09 49
IV.CESI.HHZ. 2019-02-20T08:44:53.73 0.1 undecidable manual S 280 0.0198 162 0.05 100
IV.CESI.HHZ. 2019-02-20T08:44:52.54 0.1 undecidable manual P 280 0.0198 162 -0.12 99
IT.RMMM.HGZ. 2019-02-20T08:44:51.29 3.0 undecidable manual P -2.29 0
IV.MMO1.EHZ. 2019-02-20T08:44:49.88 3.0 undecidable manual P 0.3067 -8.33 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CR.ZAG.BHN. ML:3.8 0.0003975 0.56 AML other m 2019-02-20T08:45:51.15
IV.CESI.HHN. ML:0 4.975E-5 0.3 AML other m 2019-02-20T08:44:55.74
CR.ZAG.BHE. ML:4 0.000552 0.72 AML other m 2019-02-20T08:45:48.63
IV.EUCT.HNE. ML:4.4 0.001545 0.8 AML other m 2019-02-20T08:46:13.54
IV.EUCT.HNN. ML:4.6 0.002495 0.08 AML other m 2019-02-20T08:46:14.17
IV.FDMO.HHE. ML:0.2 2.1115975E-5 3.3216 AML other m 2019-02-20T08:44:57.46
IV.ASSB.HHN. ML:0.7 3.277065E-5 4.8832 AML other m 2019-02-20T08:45:02.19
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