Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 0.8 on date 05-03-2021 and time 08:19:28 (UTC) in region 4 km SW Serra Sant'Abbondio (PU)

A magnitude Md 0.8 earthquake occured in region: 4 km SW Serra Sant'Abbondio (PU), on

  • 05-03-2021 08:19:28 (UTC)
  • 05-03-2021 09:19:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4660, 12.7440 at 16 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.

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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 4 1027 1027
Frontone PU 6 1300 2327
Scheggia e Pascelupo PG 9 1393 3720
Cantiano PU 9 2245 5965
Sassoferrato AN 10 7285 13250
Cagli PU 12 8731 21981
Costacciaro PG 12 1216 23197
Pergola PU 13 6333 29530
Sigillo PG 15 2404 31934
Genga AN 16 1797 33731
Arcevia AN 16 4612 38343
Acqualagna PU 18 4393 42736
Gubbio PG 18 32216 74952
Fossato di Vico PG 19 2840 77792
Fabriano AN 19 31480 109272

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km SW of Fano (60888 inhabitants)
49 Km NE of Perugia (166134 inhabitants)
51 Km S of Pesaro (94582 inhabitants)
57 Km N of Foligno (57155 inhabitants)
65 Km W of Ancona (100861 inhabitants)
68 Km S of Rimini (147750 inhabitants)
70 Km E of Arezzo (99543 inhabitants)
85 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
Reviewed
Rev100 		Md 0.8 2021-03-05
08:19:28		 43.4663 12.7445 16 2021-03-05
08:30:02		 Sala Sismica INGV-Roma 87769141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-05 08:19:28 ± 0.27
Latitude 43.4663 ± 0.0126
Longitude 12.7445 ± 0.0161
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87769141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1592
Semi-minor axis of confidence ellipse (meter) 946
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 1590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18706
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 6
Magnitude information

Md:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 4
Type of magnitude Md
Reference to an origin 87769141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-05 08:30:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IFIL.HHZ. 2021-03-05T08:21:27.96 3.0 undecidable manual Sn -1.07 0
IV.HVZN.HHZ. 2021-03-05T08:21:07.31 3.0 positive manual Pg 14.69 0
IV.VARE.HHZ. 2021-03-05T08:21:02.93 3.0 undecidable manual Sn -6.04 0
IV.PLLN.EHZ. 2021-03-05T08:20:58.88 3.0 positive manual Pg 18.33 0
IV.CADC.EHZ. 2021-03-05T08:20:56.10 3.0 undecidable manual Sg 11.21 0
GU.BLANC.HHZ. 2021-03-05T08:20:41.31 3.0 undecidable manual Pn 4.27 0
IV.MPNC.HHZ. 2021-03-05T08:20:37.32 3.0 positive manual Pn -4.22 0
FR.SAOF.HHZ.00 2021-03-05T08:20:36.21 3.0 negative manual Pg 13.15 0
MN.TRI.HHZ. 2021-03-05T08:20:32.93 3.0 undecidable manual Sg 1.16 0
IV.ZEN8.EHZ. 2021-03-05T08:20:32.52 3.0 undecidable manual Sn -9.04 0
SL.KOGS.BHZ. 2021-03-05T08:20:28.12 3.0 positive manual Pg 7.12 0
GU.CANO.HHZ. 2021-03-05T08:20:24.20 3.0 undecidable manual Pg 7.23 0
IV.ZONE.HHZ. 2021-03-05T08:20:17.01 3.0 positive manual Pg 4.9 0
IV.GIUL.HHZ. 2021-03-05T08:19:52.07 3.0 undecidable manual Pg 1.2 0
IV.FIR.HHZ. 2021-03-05T08:19:46.26 3.0 undecidable manual Pg -0.33 0
IV.OFFI.HHZ. 2021-03-05T08:19:45.20 3.0 undecidable manual Sn 1.03 0
IV.TERO.HHZ. 2021-03-05T08:19:37.36 3.0 undecidable manual P -0.42 0
IV.PIEI.HHZ. 2021-03-05T08:19:36.01 0.6 undecidable manual S 295 18.5703 118 -0.23 47
IV.NARO.HHZ. 2021-03-05T08:19:36.80 0.6 undecidable manual S 321 20.7681 114 0.02 49
IV.ATBU.EHZ. 2021-03-05T08:19:36.00 0.1 undecidable manual S 274 15.873 124 0.38 92
IV.NARO.HHZ. 2021-03-05T08:19:33.21 0.6 negative manual P 321 20.7681 114 -0.07 48
IV.ATSC.EHE. 2021-03-05T08:19:33.82 0.1 undecidable manual S 225 6.5934 152 -0.14 97
IV.MPAG.EHZ. 2021-03-05T08:19:33.56 1.0 undecidable manual P 4 18.0708 119 0.65 21
IV.SSFR.HHE. 2021-03-05T08:19:33.75 0.1 undecidable manual S 138 4.4955 160 0.02 100
IV.PIEI.HHZ. 2021-03-05T08:19:32.81 0.1 undecidable manual P 295 18.5703 118 -0.16 95
IV.ATBU.EHZ. 2021-03-05T08:19:32.49 0.6 undecidable manual P 274 15.873 124 -0.12 48
IV.SSFR.HHE. 2021-03-05T08:19:31.58 0.1 undecidable manual P 138 4.4955 160 0.06 99
IV.ATSC.EHE. 2021-03-05T08:19:31.59 0.1 undecidable manual P 225 6.5934 152 -0.06 99
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