INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.8 on date 21-02-2019 and time 10:28:14 (Italy) in region 1 km NW Fiastra (MC)

A magnitude ML 0.8 earthquake occured in region: 1 km NW Fiastra (MC), on

  • 21-02-2019 09:28:14 (UTC)
  • 21-02-2019 10:28:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.04, 13.15 at 9 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
Fiastra MC 1 559 559
Acquacanina MC 2 121 680
Fiordimonte MC 5 202 882
Pievebovigliana MC 6 866 1748
Bolognola MC 8 142 1890
Pieve Torina MC 8 1458 3348
Muccia MC 10 915 4263
Ussita MC 11 444 4707
Cessapalombo MC 12 512 5219
Sarnano MC 12 3264 8483
Caldarola MC 12 1823 10306
Camerino MC 13 6974 17280
Monte Cavallo MC 13 145 17425
Visso MC 13 1107 18532
Camporotondo di Fiastrone MC 14 563 19095
Belforte del Chienti MC 15 1886 20981
Serrapetrona MC 15 966 21947
San Ginesio MC 15 3498 25445
Gualdo MC 16 815 26260
Castelsantangelo sul Nera MC 16 281 26541
Serravalle di Chienti MC 17 1070 27611
Amandola FM 18 3629 31240
Montefortino FM 19 1178 32418

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
67 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
79 Km N of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
99 Km S of Pesaro (94582 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 2019-02-21
09:28:14
43.04 13.15 9 2019-02-21
09:31:03
Sala Sismica INGV-Roma 65756771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-21 09:28:14 ± 0.07
Latitude 43.04 ± 0.00
Longitude 13.15 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65756771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
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) 0.28958
Number of stations at which the event was observed 8
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 4
Type of magnitude ML
Reference to an origin 65756771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-21 09:31:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PE3.EHZ. 2019-02-21T09:28:33.32 3.0 undecidable manual P 0.83 0
IV.EL6.EHZ. 2019-02-21T09:28:25.65 0.1 undecidable manual S 353 0.2896 50 0.04 97
IV.MMO1.EHZ. 2019-02-21T09:28:22.00 0.1 undecidable manual S 138 0.1916 113 -0.12 97
IV.NRCA.HHZ. 2019-02-21T09:28:22.58 0.1 undecidable manual S 188 0.2104 111 -0.21 95
IV.CESI.HHZ. 2019-02-21T09:28:21.93 0.3 undecidable manual S 259 0.1844 114 0.04 74
IV.EL6.EHZ. 2019-02-21T09:28:20.57 0.1 undecidable manual P 353 0.2896 50 -0.18 94
IV.MC2.EHZ. 2019-02-21T09:28:20.36 0.1 undecidable manual S 168 0.1331 121 0.23 96
IV.NRCA.HHZ. 2019-02-21T09:28:19.05 0.1 undecidable manual P 188 0.2104 111 -0.08 98
IV.MMO1.EHZ. 2019-02-21T09:28:18.64 0.6 undecidable manual P 138 0.1916 113 -0.1 49
IV.CESI.HHZ. 2019-02-21T09:28:18.71 0.1 undecidable manual P 259 0.1844 114 0.11 98
IV.MC2.EHZ. 2019-02-21T09:28:17.85 0.3 negative manual P 168 0.1331 121 0.27 72
IV.FDMO.HHZ. 2019-02-21T09:28:17.52 0.1 undecidable manual S 264 0.0477 150 -0.23 98
IV.CSP1.EHZ. 2019-02-21T09:28:17.97 0.1 undecidable manual S 38 0.063 142 -0.11 100
IV.FDMO.HHZ. 2019-02-21T09:28:16.35 0.1 undecidable manual P 264 0.0477 150 0.14 100
IV.CSP1.EHZ. 2019-02-21T09:28:16.63 0.1 positive manual P 38 0.063 142 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.5 2.735E-5 0.38 AML other m 2019-02-21T09:28:22.54
IV.NRCA.HHE. ML:1 6.2E-5 0.22 AML other m 2019-02-21T09:28:24.55
IV.NRCA.HHN. ML:0.9 5.15E-5 0.64 AML other m 2019-02-21T09:28:24.35
IV.CESI.HHN. ML:0.6 3.135E-5 1.14 AML other m 2019-02-21T09:28:25.57
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