Earthquake with magnitude of ML 1.1 on date 17-02-2021 and time 20:52:42 (Italy) in region 5 km NW Monte Cavallo (MC)

A magnitude ML 1.1 earthquake occured in region: 5 km NW Monte Cavallo (MC), on

  • 17-02-2021 19:52:42 (UTC)
  • 17-02-2021 20:52:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0260, 12.9600 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
Monte Cavallo MC 5 145 145
Serravalle di Chienti MC 5 1070 1215
Pieve Torina MC 8 1458 2673
Muccia MC 9 915 3588
Fiordimonte MC 11 202 3790
Pievebovigliana MC 11 866 4656
Sefro MC 14 422 5078
Visso MC 15 1107 6185
Camerino MC 15 6974 13159
Sellano PG 15 1079 14238
Fiastra MC 16 559 14797
Nocera Umbra PG 17 5839 20636
Valtopina PG 17 1398 22034
Pioraco MC 17 1134 23168
Ussita MC 17 444 23612
Acquacanina MC 18 121 23733
Preci PG 18 724 24457
Fiuminata MC 18 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
99 Km S of Pesaro (94582 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 1.1 2021-02-17
19:52:42
43.0263 12.9595 12 2021-02-17
20:00:16
Sala Sismica INGV-Roma 87252711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-17 19:52:42 ± 0.04
Latitude 43.0263 ± 0.0027
Longitude 12.9595 ± 0.0037
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 87252711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 284
Semi-minor axis of confidence ellipse (meter) 219
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.33725
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 87252711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-17 20:00:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2021-02-17T19:52:55.24 0.6 undecidable manual S 188 37.4292 92 0.21 45
IV.EL6.EHZ. 2021-02-17T19:52:54.59 0.3 undecidable manual S 19 35.5422 92 0.08 72
IV.ATCC.EHZ. 2021-02-17T19:52:53.63 0.6 undecidable manual S 304 31.3464 92 0.25 46
IV.MMO1.EHZ. 2021-02-17T19:52:53.74 0.3 undecidable manual S 115 32.9448 92 -0.09 71
IV.MC2.EHZ. 2021-02-17T19:52:51.18 0.3 undecidable manual S 124 22.5552 95 0.12 72
IV.ASSB.HHZ. 2021-02-17T19:52:51.39 0.3 undecidable manual S 274 24.4533 94 -0.17 71
IV.NRCA.HHZ. 2021-02-17T19:52:51.45 0.3 undecidable manual S 150 24.8529 94 -0.2 71
IV.CSP1.EHZ. 2021-02-17T19:52:50.72 0.3 undecidable manual S 70 21.1677 95 0.03 73
IV.EL6.EHZ. 2021-02-17T19:52:49.51 0.6 negative manual P 19 35.5422 92 0.04 48
IV.GAVE.EHZ. 2021-02-17T19:52:49.94 1.0 positive manual P 188 37.4292 92 0.17 23
IV.MMO1.EHZ. 2021-02-17T19:52:49.07 0.6 negative manual P 115 32.9448 92 0 48
IV.ATCC.EHZ. 2021-02-17T19:52:48.85 1.0 positive manual P 304 31.3464 92 0.04 24
IV.NRCA.HHZ. 2021-02-17T19:52:47.71 0.1 negative manual P 150 24.8529 94 -0.11 96
IV.MC2.EHZ. 2021-02-17T19:52:47.82 1.0 undecidable manual P 124 22.5552 95 0.35 23
IV.CSP1.EHZ. 2021-02-17T19:52:47.23 1.0 positive manual P 70 21.1677 95 -0.03 24
IV.ASSB.HHZ. 2021-02-17T19:52:47.67 0.1 positive manual P 274 24.4533 94 -0.09 96
IV.CESI.HHZ. 2021-02-17T19:52:46.82 0.3 undecidable manual S 242 5.0949 150 -0.15 74
IV.CESI.HHZ. 2021-02-17T19:52:45.17 0.1 undecidable manual P 242 5.0949 150 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 0.000194 1.76 AML other m 2021-02-17T19:52:46.10
IV.CESI.HHN. ML:1.2 0.00021600000000000002 0.1 AML other m 2021-02-17T19:52:47.10
IV.NRCA.HHN. ML:1.2 0.00009075 0.1 AML other m 2021-02-17T19:52:51.67
IV.ASSB.HHN. ML:0.8 0.0000421 0.84 AML other m 2021-02-17T19:52:51.42
IV.NRCA.HHE. ML:1.0 0.00005265 0.1 AML other m 2021-02-17T19:52:51.97
IV.ASSB.HHE. ML:1.0 0.000056 0.48 AML other m 2021-02-17T19:52:52.66
IV.EL6.EHE. ML:1.3 0.0000746 1.66 AML other m 2021-02-17T19:52:55.06
IV.EL6.EHN. ML:1.2 0.0000692 1.58 AML other m 2021-02-17T19:52:55.86
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