Earthquake with magnitude of ML 0.4 on date 21-08-2019 and time 01:09:12 (Italy) in region 2 km SE Serra Sant'Abbondio (PU)

A magnitude ML 0.4 earthquake occured in region: 2 km SE Serra Sant'Abbondio (PU), on

  • 20-08-2019 23:09:12 (UTC)
  • 21-08-2019 01:09:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.48, 12.78 at 15 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 2 1027 1027
Frontone PU 5 1300 2327
Sassoferrato AN 8 7285 9612
Pergola PU 10 6333 15945
Cantiano PU 13 2245 18190
Scheggia e Pascelupo PG 13 1393 19583
Arcevia AN 13 4612 24195
Cagli PU 13 8731 32926
Genga AN 14 1797 34723
Costacciaro PG 15 1216 35939
Sigillo PG 17 2404 38343
Acqualagna PU 18 4393 42736
Fabriano AN 19 31480 74216
San Lorenzo in Campo PU 19 3414 77630
Serra San Quirico AN 19 2850 80480
Fratte Rosa PU 19 966 81446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km SW of Fano (60888 inhabitants)
49 Km S of Pesaro (94582 inhabitants)
52 Km NE of Perugia (166134 inhabitants)
59 Km N of Foligno (57155 inhabitants)
61 Km W of Ancona (100861 inhabitants)
67 Km S of Rimini (147750 inhabitants)
73 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
Rev 1000 ML 0.4 2019-08-20
23:09:12
43.48 12.78 15 2019-11-13
14:31:04
Bollettino Sismico Italiano INGV 73021661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 23:09:12 ± 0.06
Latitude 43.48 ± 0.00
Longitude 12.78 ± 0.01
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73021661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 276
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.3957
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 73021661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-03 14:57:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATPC.HHZ. 2019-08-20T23:09:22.29 0.6 undecidable manual S 270 0.2365 105 0.34 46
IV.FOSV.EHZ. 2019-08-20T23:09:20.54 0.1 undecidable manual S 185 0.1871 112 -0.01 99
IV.SENI.HNN. 2019-08-20T23:09:20.88 0.1 undecidable manual P 55 0.3957 97 0.32 89
IV.ATFO.HHZ. 2019-08-20T23:09:20.76 0.3 undecidable manual S 233 0.1916 111 0.07 73
IV.ATBU.EHZ. 2019-08-20T23:09:20.19 0.6 undecidable manual S 268 0.1709 115 0.08 49
IV.NARO.HHZ. 2019-08-20T23:09:20.40 0.6 undecidable manual S 312 0.1961 111 -0.41 45
IV.PIEI.HHZ. 2019-08-20T23:09:20.31 0.3 undecidable manual S 287 0.188 112 -0.28 70
IV.MPAG.EHZ. 2019-08-20T23:09:19.57 0.1 undecidable manual S 353 0.1493 120 0.01 99
IV.APEC.HHZ. 2019-08-20T23:09:18.80 0.6 undecidable manual P 287 0.2743 102 0.28 46
IV.EL6.EHZ. 2019-08-20T23:09:18.42 0.1 undecidable manual P 123 0.2761 102 -0.13 94
IV.SNTG.HHZ. 2019-08-20T23:09:18.13 0.1 undecidable manual P 153 0.2527 104 -0.03 97
IV.ATSC.EHZ. 2019-08-20T23:09:18.15 0.3 undecidable manual S 231 0.0899 138 -0.05 75
IV.NARO.HHZ. 2019-08-20T23:09:17.13 0.1 undecidable manual P 312 0.1961 111 -0.1 96
IV.SSFR.HHZ. 2019-08-20T23:09:17.52 0.6 undecidable manual S 181 0.045 158 0.05 50
IV.FRON.EHZ. 2019-08-20T23:09:17.61 0.3 undecidable manual S 312 0.0558 153 0 75
IV.FOSV.EHZ. 2019-08-20T23:09:17.03 0.3 undecidable manual P 185 0.1871 112 -0.05 73
IV.ATPC.HHZ. 2019-08-20T23:09:17.97 0.1 undecidable manual P 270 0.2365 105 0.08 97
IV.ATFO.HHZ. 2019-08-20T23:09:17.13 0.3 undecidable manual P 233 0.1916 111 -0.03 73
IV.ATBU.EHZ. 2019-08-20T23:09:17.01 0.1 undecidable manual P 268 0.1709 115 0.18 96
IV.MPAG.EHZ. 2019-08-20T23:09:16.53 0.1 undecidable manual P 353 0.1493 120 0.02 99
IV.PIEI.HHZ. 2019-08-20T23:09:16.90 0.1 undecidable manual P 287 0.188 112 -0.21 94
IV.ATSC.EHZ. 2019-08-20T23:09:15.75 0.1 undecidable manual P 231 0.0899 138 0.03 100
IV.SSFR.HHZ. 2019-08-20T23:09:15.21 0.1 undecidable manual P 181 0.045 158 -0.1 100
IV.FRON.EHZ. 2019-08-20T23:09:15.47 0.3 negative manual P 312 0.0558 153 0.08 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:0.4 2.84E-5 1.02 AML other m 2019-08-20T23:09:17.32
IV.FRON.EHN. ML:0.5 3.54E-5 0.58 AML other m 2019-08-20T23:09:18.46
IV.PIEI.HHN. ML:0.2 1.22E-5 0.52 AML other m 2019-08-20T23:09:20.50
IV.PIEI.HHE. ML:0.5 1.885E-5 0.12 AML other m 2019-08-20T23:09:20.86
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download