INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.8 on date 17-02-2019 and time 08:56:26 (Italy) in region 4 km S Sefro (MC)

A magnitude ML 0.8 earthquake occured in region: 4 km S Sefro (MC), on

  • 17-02-2019 07:56:26 (UTC)
  • 17-02-2019 08:56:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.12, 12.95 at 10 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
Sefro MC 4 422 422
Serravalle di Chienti MC 5 1070 1492
Pioraco MC 8 1134 2626
Fiuminata MC 8 1402 4028
Muccia MC 9 915 4943
Camerino MC 10 6974 11917
Pieve Torina MC 11 1458 13375
Pievebovigliana MC 13 866 14241
Nocera Umbra PG 13 5839 20080
Castelraimondo MC 14 4587 24667
Monte Cavallo MC 14 145 24812
Fiordimonte MC 14 202 25014
Esanatoglia MC 15 2034 27048
Matelica MC 17 9981 37029
Valtopina PG 17 1398 38427
Gagliole MC 17 620 39047
Gualdo Tadino PG 19 15208 54255
Fiastra MC 19 559 54814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
66 Km NE of Terni (111501 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
80 Km NW of Teramo (54892 inhabitants)
81 Km S of Fano (60888 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
95 Km E 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 0.8 2019-02-17
07:56:26
43.12 12.95 10 2019-02-17
08:02:00
Sala Sismica INGV-Roma 65620221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 07:56:26 ± 0.06
Latitude 43.12 ± 0.00
Longitude 12.95 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65620221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 81
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.34354
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 65620221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 08:02:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2019-02-17T07:56:39.72 0.3 undecidable manual S 339 0.3435 50 0.38 67
IV.NRCA.HHZ. 2019-02-17T07:56:38.15 0.3 undecidable manual S 157 0.3058 50 -0.09 72
IV.FOSV.EHZ. 2019-02-17T07:56:35.61 0.6 undecidable manual S 323 0.2257 112 -0.23 47
IV.ASSB.HHZ. 2019-02-17T07:56:35.50 0.6 undecidable manual S 251 0.2239 112 -0.28 47
IV.SSFR.HHZ. 2019-02-17T07:56:33.79 0.3 undecidable manual P 339 0.3435 50 -0.12 71
IV.NRCA.HHZ. 2019-02-17T07:56:33.13 0.1 undecidable manual P 157 0.3058 50 -0.14 94
IV.FDMO.HHZ. 2019-02-17T07:56:32.35 0.6 undecidable manual S 128 0.1277 125 -0.14 49
IV.CESI.HHZ. 2019-02-17T07:56:32.42 0.6 undecidable manual S 197 0.1151 128 0.33 47
IV.SNTG.HHZ. 2019-02-17T07:56:32.88 0.6 undecidable manual S 357 0.1403 123 0 50
IV.FOSV.EHZ. 2019-02-17T07:56:31.76 0.6 negative manual P 323 0.2257 112 -0.12 48
IV.ASSB.HHZ. 2019-02-17T07:56:31.78 1.0 undecidable manual P 251 0.2239 112 -0.07 24
IV.SNTG.HHZ. 2019-02-17T07:56:30.19 0.1 undecidable manual P 357 0.1403 123 0.02 100
IV.FDMO.HHZ. 2019-02-17T07:56:29.96 0.6 positive manual P 128 0.1277 125 0.02 50
IV.CESI.HHZ. 2019-02-17T07:56:29.96 0.1 positive manual P 197 0.1151 128 0.24 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1 0.0001136 0.08 AML other m 2019-02-17T07:56:32.46
IV.FDMO.HHE. ML:0.5 3.115E-5 0.16 AML other m 2019-02-17T07:56:32.42
IV.FDMO.HHN. ML:0.5 3.34E-5 0.16 AML other m 2019-02-17T07:56:32.50
IV.CESI.HHN. ML:0.5 3.725E-5 1.26 AML other m 2019-02-17T07:56:32.85
IV.SNTG.HHN. ML:1 8.445E-5 1.9 AML other m 2019-02-17T07:56:32.02
IV.SNTG.HHE. ML:0.9 7.445E-5 0.3 AML other m 2019-02-17T07:56:33.16
IV.ASSB.HHE. ML:0.5 2.002E-5 0.98 AML other m 2019-02-17T07:56:35.17
IV.ASSB.HHN. ML:0.7 2.945E-5 0.2 AML other m 2019-02-17T07:56:36.06
IV.NRCA.HHE. ML:1 4.49E-5 0.14 AML other m 2019-02-17T07:56:38.35
IV.NRCA.HHN. ML:0.9 3.38E-5 0.58 AML other m 2019-02-17T07:56:39.35
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