Earthquake with magnitude of ML 1.0 on date 06-10-2020 and time 23:17:40 (Italy) in region 3 km SE Ussita (MC)

A magnitude ML 1.0 earthquake occured in region: 3 km SE Ussita (MC), on

  • 06-10-2020 21:17:40 (UTC)
  • 06-10-2020 23:17:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.93, 13.17 at 6 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 7 1107 1832
Bolognola MC 9 142 1974
Acquacanina MC 11 121 2095
Preci PG 12 724 2819
Fiastra MC 12 559 3378
Montemonaco AP 13 604 3982
Fiordimonte MC 14 202 4184
Montefortino FM 14 1178 5362
Monte Cavallo MC 16 145 5507
Pieve Torina MC 16 1458 6965
Sarnano MC 16 3264 10229
Norcia PG 16 4957 15186
Amandola FM 16 3629 18815
Pievebovigliana MC 16 866 19681
Montegallo AP 16 523 20204
Muccia MC 20 915 21119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
67 Km E of Perugia (166134 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
100 Km NW of Pescara (121014 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 1.0 2020-10-06
21:17:40
42.93 13.17 6 2020-10-06
22:15:36
Sala Sismica INGV-Roma 83563791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-06 21:17:40 ± 0.18
Latitude 42.93 ± 0.01
Longitude 13.17 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83563791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 640
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
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) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.32196
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 83563791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-06 22:15:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-10-06T21:17:49.34 0.1 undecidable manual S 291 0.2077 104 0.17 95
IV.CSP1.EHZ. 2020-10-06T21:17:47.75 0.3 undecidable manual S 9 0.1646 107 0.19 72
IV.SMA1.EHZ. 2020-10-06T21:17:47.54 0.1 undecidable manual P 158 0.322 99 -0.63 82
IV.MF5.EHZ. 2020-10-06T21:17:46.11 0.3 undecidable manual P 74 0.2203 103 0.16 71
IV.MMO1.EHZ. 2020-10-06T21:17:46.04 0.1 undecidable manual S 104 0.1187 113 0.14 97
IV.NRCA.HHZ. 2020-10-06T21:17:45.93 0.1 undecidable manual S 203 0.1034 116 0.57 88
IV.CSP1.EHZ. 2020-10-06T21:17:45.28 0.3 undecidable manual P 9 0.1646 107 0.52 66
IV.CESI.HHZ. 2020-10-06T21:17:45.51 0.1 undecidable manual P 291 0.2077 104 -0.18 95
IV.FDMO.HHZ. 2020-10-06T21:17:45.86 0.1 undecidable manual S 331 0.1232 112 -0.19 96
IV.NRCA.HHZ. 2020-10-06T21:17:43.48 0.1 undecidable manual P 203 0.1034 116 -0.01 100
IV.FDMO.HHZ. 2020-10-06T21:17:43.64 0.1 undecidable manual P 331 0.1232 112 -0.24 95
IV.MMO1.EHZ. 2020-10-06T21:17:43.84 0.1 undecidable manual P 104 0.1187 113 0.05 99
IV.MC2.EHZ. 2020-10-06T21:17:42.85 0.1 undecidable manual S 141 0.0225 156 -0.2 98
IV.MC2.EHZ. 2020-10-06T21:17:42.06 0.1 undecidable manual P 141 0.0225 156 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1 0.0001285 0.42 AML other m 2020-10-06T21:17:46.25
IV.NRCA.HHE. ML:1.2 0.000216 0.12 AML other m 2020-10-06T21:17:47.09
IV.FDMO.HHN. ML:1.1 0.0001555 0.22 AML other m 2020-10-06T21:17:47.13
IV.NRCA.HHN. ML:1.2 0.000201 1.12 AML other m 2020-10-06T21:17:48.58
IV.CESI.HHN. ML:0.9 5.165E-5 0.58 AML other m 2020-10-06T21:17:50.55
IV.CESI.HHE. ML:0.9 4.825E-5 1.34 AML other m 2020-10-06T21:17:51.32
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