INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.8 on date 20-01-2019 and time 06:33:27 (Italy) in region 4 km SW Fiastra (MC)

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

  • 20-01-2019 05:33:27 (UTC)
  • 20-01-2019 06:33:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.01, 13.12 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
Fiordimonte MC 4 202 202
Fiastra MC 4 559 761
Acquacanina MC 5 121 882
Pievebovigliana MC 7 866 1748
Pieve Torina MC 7 1458 3206
Ussita MC 7 444 3650
Bolognola MC 9 142 3792
Visso MC 9 1107 4899
Monte Cavallo MC 10 145 5044
Muccia MC 11 915 5959
Castelsantangelo sul Nera MC 13 281 6240
Sarnano MC 15 3264 9504
Camerino MC 15 6974 16478
Serravalle di Chienti MC 16 1070 17548
Preci PG 16 724 18272
Cessapalombo MC 16 512 18784
Caldarola MC 17 1823 20607
Camporotondo di Fiastrone MC 18 563 21170
Gualdo MC 19 815 21985
Amandola FM 19 3629 25614
Montefortino FM 19 1178 26792
San Ginesio MC 19 3498 30290
Serrapetrona MC 20 966 31256
Belforte del Chienti MC 20 1886 33142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
61 Km E of Perugia (166134 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
63 Km NE of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Fano (60888 inhabitants)
100 Km NW 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
Rev 100 ML 0.8 2019-01-20
05:33:27
43.01 13.12 7 2019-01-20
05:49:50
Sala Sismica INGV-Roma 64807961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-20 05:33:27 ± 0.12
Latitude 43.01 ± 0.00
Longitude 13.12 ± 0.01
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 64807961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 542
Semi-minor axis of confidence ellipse (meter) 506
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.52251
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 64807961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-20 05:49:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-01-20T05:33:46.30 3.0 undecidable manual S 0.5225 0.24 0
IV.TERO.HHZ. 2019-01-20T05:33:42.53 3.0 undecidable manual P 0.5225 4.41 0
IV.NRCA.HHZ. 2019-01-20T05:33:34.51 0.1 undecidable manual S 182 0.1745 110 0.08 96
IV.EL6.EHZ. 2019-01-20T05:33:34.43 0.6 negative manual P 357 0.3211 101 -0.11 46
IV.SNTG.HHZ. 2019-01-20T05:33:33.97 0.6 undecidable manual P 332 0.2806 103 0.32 45
IV.MF5.EHZ. 2019-01-20T05:33:33.31 1.0 positive manual P 95 0.2464 105 0.38 22
IV.MC2.EHZ. 2019-01-20T05:33:32.22 0.1 undecidable manual S 154 0.1079 121 0.12 97
IV.MMO1.EHZ. 2019-01-20T05:33:31.42 0.3 undecidable manual P 126 0.1844 109 -0.18 71
IV.NRCA.HHZ. 2019-01-20T05:33:31.13 0.3 negative manual P 182 0.1745 110 -0.27 69
IV.CESI.HHZ. 2019-01-20T05:33:31.15 0.6 undecidable manual P 269 0.1601 112 0.06 48
IV.FDMO.HHZ. 2019-01-20T05:33:30.09 0.1 undecidable manual S 317 0.0387 149 -0.05 99
IV.MC2.EHZ. 2019-01-20T05:33:29.95 1.0 positive manual P 154 0.1079 121 -0.1 24
IV.FDMO.HHZ. 2019-01-20T05:33:28.90 0.1 positive manual P 317 0.0387 149 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.9 7.235E-5 0.22 AML other m 2019-01-20T05:33:34.50
IV.CESI.HHE. ML:0.7 4.36E-5 1.36 AML other m 2019-01-20T05:33:34.91
IV.NRCA.HHN. ML:0.8 5.04E-5 0.34 AML other m 2019-01-20T05:33:35.79
IV.NRCA.HHE. ML:0.9 6.765E-5 0.6 AML other m 2019-01-20T05:33:37.53
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