Earthquake with magnitude of ML 0.4 on date 17-02-2021 and time 02:11:39 (Italy) in region 4 km SW Serra Sant'Abbondio (PU)

A magnitude ML 0.4 earthquake occured in region: 4 km SW Serra Sant'Abbondio (PU), on

  • 17-02-2021 01:11:39 (UTC)
  • 17-02-2021 02:11:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4660, 12.7290 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Serra Sant'Abbondio PU 5 1027 1027
Frontone PU 6 1300 2327
Cantiano PU 8 2245 4572
Scheggia e Pascelupo PG 8 1393 5965
Sassoferrato AN 11 7285 13250
Cagli PU 11 8731 21981
Costacciaro PG 12 1216 23197
Pergola PU 14 6333 29530
Sigillo PG 15 2404 31934
Genga AN 17 1797 33731
Gubbio PG 17 32216 65947
Acqualagna PU 18 4393 70340
Arcevia AN 18 4612 74952
Fossato di Vico PG 19 2840 77792

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km SW of Fano (60888 inhabitants)
48 Km NE of Perugia (166134 inhabitants)
52 Km SW of Pesaro (94582 inhabitants)
57 Km N of Foligno (57155 inhabitants)
66 Km W of Ancona (100861 inhabitants)
68 Km S of Rimini (147750 inhabitants)
68 Km E of Arezzo (99543 inhabitants)
84 Km SE of Cesena (96758 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
Bulletin
Rev1000
ML 0.4 2021-02-17
01:11:39
43.4658 12.7292 14 2021-07-12
16:54:59
Bollettino Sismico Italiano INGV 87277061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-17 01:11:39 ± 0.08
Latitude 43.4658 ± 0.0027
Longitude 12.7292 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87277061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 337
Semi-minor axis of confidence ellipse (meter) 133
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 327
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.25181
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 87277061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-18 14:30:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HNZ. 2021-02-17T01:11:50.32 0.6 undecidable manual S 216 27.9498 100 0.52 43
IV.ATFO.HHZ. 2021-02-17T01:11:47.03 0.3 undecidable manual S 229 16.7721 115 0.06 73
IV.MPAG.EHZ. 2021-02-17T01:11:47.38 0.6 undecidable manual S 8 18.2706 112 0.05 48
IV.FOSV.EHZ. 2021-02-17T01:11:47.34 0.6 undecidable manual S 172 19.1697 110 -0.2 47
IV.ARVD.HHZ. 2021-02-17T01:11:47.02 0.3 undecidable manual S 78 17.4714 113 -0.11 73
IV.PIEI.HHZ. 2021-02-17T01:11:47.10 0.6 undecidable manual S 296 17.4714 114 -0.02 49
IV.NARO.HHZ. 2021-02-17T01:11:47.76 0.6 undecidable manual S 323 20.0688 109 -0.01 49
IV.MURB.HNZ. 2021-02-17T01:11:45.61 0.1 undecidable manual P 216 27.9498 100 0.02 96
IV.ARVD.HHZ. 2021-02-17T01:11:44.24 0.1 undecidable manual P 78 17.4714 113 0.2 94
IV.NARO.HHZ. 2021-02-17T01:11:44.25 0.3 undecidable manual P 323 20.0688 109 -0.16 71
IV.SSFR.HHZ. 2021-02-17T01:11:44.79 0.6 undecidable manual S 127 5.3946 154 0.04 50
IV.MPAG.EHZ. 2021-02-17T01:11:44.41 1.0 undecidable manual P 8 18.2706 112 0.25 23
IV.FRON.EHZ. 2021-02-17T01:11:44.87 0.3 undecidable manual S 357 5.7942 152 0.08 74
IV.ATSC.EHZ. 2021-02-17T01:11:44.84 0.6 undecidable manual S 217 5.7942 152 0.04 50
IV.PIEI.HHZ. 2021-02-17T01:11:43.88 0.3 undecidable manual P 296 17.4714 114 -0.16 72
IV.ATFO.HHZ. 2021-02-17T01:11:43.94 0.3 undecidable manual P 229 16.7721 115 -0.01 74
IV.FOSV.EHZ. 2021-02-17T01:11:43.99 0.3 undecidable manual P 172 19.1697 110 -0.29 70
IV.FRON.EHZ. 2021-02-17T01:11:42.68 0.3 undecidable manual P 357 5.7942 152 -0.02 75
IV.ATSC.EHZ. 2021-02-17T01:11:42.65 0.1 undecidable manual P 217 5.7942 152 -0.05 99
IV.SSFR.HHZ. 2021-02-17T01:11:42.64 0.1 undecidable manual P 127 5.3946 154 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHN. ML:0.5 0.000019849999999999998 0.62 AML other m 2021-02-17T01:11:47.48
IV.FOSV.EHE. ML:0.3 0.000015325 0.52 AML other m 2021-02-17T01:11:47.49
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