Earthquake with magnitude of ML 0.8 on date 20-10-2020 and time 11:50:18 (Italy) in region 2 km NE Serravalle di Chienti (MC)

A magnitude ML 0.8 earthquake occured in region: 2 km NE Serravalle di Chienti (MC), on

  • 20-10-2020 09:50:18 (UTC)
  • 20-10-2020 11:50:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0860, 12.9650 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 2 1070 1070
Muccia MC 7 915 1985
Sefro MC 7 422 2407
Pieve Torina MC 8 1458 3865
Pievebovigliana MC 10 866 4731
Camerino MC 10 6974 11705
Monte Cavallo MC 11 145 11850
Pioraco MC 11 1134 12984
Fiordimonte MC 12 202 13186
Fiuminata MC 12 1402 14588
Nocera Umbra PG 14 5839 20427
Castelraimondo MC 16 4587 25014
Fiastra MC 17 559 25573
Valtopina PG 17 1398 26971
Acquacanina MC 18 121 27092
Esanatoglia MC 19 2034 29126
Gagliole MC 19 620 29746
Matelica MC 20 9981 39727
Visso MC 20 1107 40834

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
64 Km NE of Terni (111501 inhabitants)
74 Km SW of Ancona (100861 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
85 Km S of Fano (60888 inhabitants)
89 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Pesaro (94582 inhabitants)
97 Km E of Arezzo (99543 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.8 2020-10-20
09:50:18
43.0855 12.9652 12 2020-10-20
09:55:22
Sala Sismica INGV-Roma 83951981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-20 09:50:18 ± 0.06
Latitude 43.0855 ± 0.0018
Longitude 12.9652 ± 0.0025
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 83951981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 240
Semi-minor axis of confidence ellipse (meter) 26
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26350
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 9
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 83951981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-20 09:55:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BARO.EHZ. 2020-10-20T09:50:51.11 3.0 undecidable manual S -0.55 0
IV.CSNT.HHZ. 2020-10-20T09:50:40.16 3.0 undecidable manual Pn 0.37 0
IV.MMO1.EHZ. 2020-10-20T09:50:30.34 3.0 undecidable manual S 0
IV.EL6.EHZ. 2020-10-20T09:50:28.40 0.3 undecidable manual S 22 29.2485 95 0.06 72
IV.ASSB.HHZ. 2020-10-20T09:50:27.24 0.3 undecidable manual S 259 25.2525 96 -0.05 72
IV.CSP1.EHZ. 2020-10-20T09:50:25.82 0.3 undecidable manual S 88 19.4694 101 0.08 73
IV.SNTG.HHZ. 2020-10-20T09:50:25.39 0.3 undecidable manual S 354 18.87 102 -0.22 71
IV.EL6.EHZ. 2020-10-20T09:50:24.13 1.0 negative manual P 22 29.2485 95 0.13 24
IV.FEMA.HNE. 2020-10-20T09:50:24.67 0.1 undecidable manual S 153 15.2736 110 -0.01 99
IV.MMO1.EHZ. 2020-10-20T09:50:23.94 3.0 undecidable manual P -0.11 0
IV.FDMO.HHZ. 2020-10-20T09:50:23.52 0.3 undecidable manual S 119 11.2776 123 -0.2 72
IV.CESI.HHZ. 2020-10-20T09:50:23.52 0.3 undecidable manual S 209 10.1787 128 0.03 75
IV.ASSB.HHZ. 2020-10-20T09:50:23.53 1.0 undecidable manual P 259 25.2525 96 0.14 24
IT.MTCL.HGE. 2020-10-20T09:50:23.45 0.1 undecidable manual S 165 10.5783 126 -0.11 98
IV.SNTG.HHZ. 2020-10-20T09:50:22.34 0.6 undecidable manual P 354 18.87 102 -0.08 48
IV.MML1.HNZ. 2020-10-20T09:50:22.43 0.3 undecidable manual S 10 3.1968 162 0.04 75
IV.CSP1.EHZ. 2020-10-20T09:50:22.51 1.0 undecidable manual P 88 19.4694 101 0.01 25
IV.CESI.HHZ. 2020-10-20T09:50:21.35 0.6 undecidable manual P 209 10.1787 128 0.16 49
IV.FEMA.HNE. 2020-10-20T09:50:21.97 0.1 undecidable manual P 153 15.2736 110 0.08 98
IT.MTCL.HGE. 2020-10-20T09:50:21.24 0.1 undecidable manual P 165 10.5783 126 0 100
IV.FDMO.HHZ. 2020-10-20T09:50:21.30 1.0 undecidable manual P 119 11.2776 123 -0.03 25
IV.MML1.HNZ. 2020-10-20T09:50:20.71 0.1 undecidable manual P 10 3.1968 162 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.00008905 0.12 AML other m 2020-10-20T09:50:23.69
IV.FDMO.HHN. ML:1.0 0.00010055 0.14 AML other m 2020-10-20T09:50:23.77
IV.ASSB.HHE. ML:0.6 0.000022 0.46 AML other m 2020-10-20T09:50:27.25
IV.ASSB.HHN. ML:0.7 0.0000316 0.18 AML other m 2020-10-20T09:50:27.70
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download