Earthquake with magnitude of ML 0.7 on date 20-10-2020 and time 01:40:43 (UTC) in region 2 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 0.7 earthquake occured in region: 2 km NE Castelsantangelo sul Nera (MC), on

  • 20-10-2020 01:40:43 (UTC)
  • 20-10-2020 03:40:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9100, 13.1710 at 11 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
Castelsantangelo sul Nera MC 2 281 281
Ussita MC 5 444 725
Visso MC 7 1107 1832
Bolognola MC 11 142 1974
Preci PG 11 724 2698
Montemonaco AP 13 604 3302
Acquacanina MC 13 121 3423
Fiastra MC 14 559 3982
Norcia PG 14 4957 8939
Montefortino FM 14 1178 10117
Montegallo AP 15 523 10640
Fiordimonte MC 16 202 10842
Monte Cavallo MC 17 145 10987
Amandola FM 17 3629 14616
Sarnano MC 18 3264 17880
Pieve Torina MC 18 1458 19338
Arquata del Tronto AP 18 1178 20516
Pievebovigliana MC 18 866 21382
Sellano PG 20 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
65 Km N of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
99 Km NW of Pescara (121014 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 0.7 2020-10-20
01:40:43
42.9102 13.1707 11 2020-10-20
01:44:24
Sala Sismica INGV-Roma 83932791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-20 01:40:43 ± 0.04
Latitude 42.9102 ± 0.0018
Longitude 13.1707 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83932791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 298
Semi-minor axis of confidence ellipse (meter) 154
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 99
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.05
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21674
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 83932791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-20 01:44:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-10-20T01:40:52.44 0.6 undecidable manual S 296 24.0537 50 0.04 49
IV.CSP1.EHZ. 2020-10-20T01:40:51.41 0.6 undecidable manual S 8 20.3685 50 0 50
IV.FDMO.HHZ. 2020-10-20T01:40:50.09 0.6 undecidable manual S 334 15.5733 125 0.01 50
IV.COR1.EHZ. 2020-10-20T01:40:49.24 3.0 positive manual P -0.01 0
IV.GAVE.EHZ. 2020-10-20T01:40:49.95 3.0 undecidable manual P 0.27 0
IV.SMA1.EHZ. 2020-10-20T01:40:49.79 3.0 positive manual Pn -0.42 0
IV.CSP1.EHZ. 2020-10-20T01:40:48.05 1.0 positive manual P 8 20.3685 50 -0.02 25
IV.NRCA.HHZ. 2020-10-20T01:40:48.47 0.6 undecidable manual S 208 9.6792 138 -0.08 50
IV.CESI.HHZ. 2020-10-20T01:40:48.60 0.1 undecidable manual P 296 24.0537 50 -0.03 98
IV.MF5.EHZ. 2020-10-20T01:40:48.91 3.0 positive manual P 0.51 0
IV.FDMO.HHZ. 2020-10-20T01:40:47.29 0.6 negative manual P 334 15.5733 125 -0.01 50
IV.NRCA.HHZ. 2020-10-20T01:40:46.47 0.1 undecidable manual P 208 9.6792 138 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.5 0.00002915 0.22 AML other m 2020-10-20T01:40:50.12
IV.FDMO.HHN. ML:0.4 0.000025450000000000002 0.76 AML other m 2020-10-20T01:40:50.70
IV.CESI.HHE. ML:0.8 0.0000412 0.48 AML other m 2020-10-20T01:40:52.84
IV.CESI.HHN. ML:0.9 0.00005005 0.22 AML other m 2020-10-20T01:40:52.84
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