Earthquake with magnitude of ML 0.7 on date 30-10-2020 and time 06:40:20 (UTC) in region 5 km SW Serravalle di Chienti (MC)

A magnitude ML 0.7 earthquake occured in region: 5 km SW Serravalle di Chienti (MC), on

  • 30-10-2020 06:40:20 (UTC)
  • 30-10-2020 07:40:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.04, 12.92 at 12 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
Serravalle di Chienti MC 5 1070 1070
Monte Cavallo MC 8 145 1215
Pieve Torina MC 11 1458 2673
Muccia MC 11 915 3588
Sefro MC 13 422 4010
Nocera Umbra PG 13 5839 9849
Valtopina PG 14 1398 11247
Pievebovigliana MC 14 866 12113
Fiordimonte MC 14 202 12315
Camerino MC 16 6974 19289
Sellano PG 16 1079 20368
Pioraco MC 17 1134 21502
Fiuminata MC 17 1402 22904
Visso MC 18 1107 24011
Fiastra MC 19 559 24570
Foligno PG 20 57155 81725
Preci PG 20 724 82449

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
97 Km SE of Arezzo (99543 inhabitants)
97 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
Reviewed
Rev100
ML 0.7 2020-10-30
06:40:20
43.04 12.92 12 2020-10-30
06:46:51
Sala Sismica INGV-Roma 84254841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-30 06:40:20 ± 0.09
Latitude 43.04 ± 0.01
Longitude 12.92 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84254841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 614
Semi-minor axis of confidence ellipse (meter) 590
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 189
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.32825
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0
Num. used stations 4
Type of magnitude ML
Reference to an origin 84254841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-30 06:46:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-10-30T06:40:30.24 0.3 undecidable manual S 145 0.2482 93 -0.06 74
IV.CSP1.EHZ. 2020-10-30T06:40:29.20 0.6 undecidable manual S 75 0.2149 94 -0.12 49
IV.ASSB.HHZ. 2020-10-30T06:40:28.49 0.6 undecidable manual S 272 0.1907 95 -0.12 49
IV.MMO1.EHZ. 2020-10-30T06:40:27.94 0.1 undecidable manual P 115 0.3283 92 0.43 90
IV.FDMO.HHZ. 2020-10-30T06:40:26.34 0.6 undecidable manual S 90 0.1223 110 -0.27 48
IV.NRCA.HHZ. 2020-10-30T06:40:26.07 0.1 undecidable manual P 145 0.2482 93 -0.08 98
IV.ASSB.HHZ. 2020-10-30T06:40:25.15 0.1 negative manual P 272 0.1907 95 -0.02 100
IV.CSP1.EHZ. 2020-10-30T06:40:25.46 0.6 negative manual P 75 0.2149 94 -0.12 49
IV.CESI.HHZ. 2020-10-30T06:40:24.77 0.6 undecidable manual S 199 0.0342 157 0.04 52
IV.CESI.HHZ. 2020-10-30T06:40:23.07 0.6 undecidable manual P 199 0.0342 157 0.14 51
IV.FDMO.HHZ. 2020-10-30T06:40:23.92 1.0 positive manual P 90 0.1223 110 -0.1 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.8 8.335E-5 1.58 AML other m 2020-10-30T06:40:24.99
IV.CESI.HHN. ML:0.7 7.93E-5 0.32 AML other m 2020-10-30T06:40:25.15
IV.ASSB.HHE. ML:0.7 3.375E-5 0.2 AML other m 2020-10-30T06:40:28.88
IV.ASSB.HHN. ML:0.7 3.43E-5 0.4 AML other m 2020-10-30T06:40:28.90
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