Earthquake with magnitude of ML 0.5 on date 20-07-2019 and time 09:53:05 (Italy) in region 4 km SW Serra Sant'Abbondio (PU)

A magnitude ML 0.5 earthquake occured in region: 4 km SW Serra Sant'Abbondio (PU), on

  • 20-07-2019 07:53:05 (UTC)
  • 20-07-2019 09:53:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.46, 12.74 at 18 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
Serra Sant'Abbondio PU 4 1027 1027
Frontone PU 6 1300 2327
Scheggia e Pascelupo PG 9 1393 3720
Cantiano PU 10 2245 5965
Sassoferrato AN 10 7285 13250
Costacciaro PG 11 1216 14466
Cagli PU 13 8731 23197
Sigillo PG 14 2404 25601
Pergola PU 14 6333 31934
Genga AN 16 1797 33731
Arcevia AN 17 4612 38343
Gubbio PG 18 32216 70559
Fossato di Vico PG 18 2840 73399
Fabriano AN 19 31480 104879
Acqualagna PU 19 4393 109272

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 S of Pesaro (94582 inhabitants)
56 Km N of Foligno (57155 inhabitants)
65 Km W of Ancona (100861 inhabitants)
69 Km S of Rimini (147750 inhabitants)
70 Km E of Arezzo (99543 inhabitants)
86 Km SE of Cesena (96758 inhabitants)
100 Km N of Terni (111501 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.5 2019-07-20
07:53:05
43.46 12.74 18 2019-07-20
07:59:18
Sala Sismica INGV-Roma 70731571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-20 07:53:05 ± 0.11
Latitude 43.46 ± 0.01
Longitude 12.74 ± 0.01
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70731571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 535
Semi-minor axis of confidence ellipse (meter) 172
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25631
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 70731571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-20 07:59:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2019-07-20T07:53:15.95 0.6 undecidable manual S 145 0.2482 113 0.3 46
IV.ATVO.HNZ. 2019-07-20T07:53:15.86 0.6 undecidable manual S 253 0.2563 112 -0.02 49
IV.ATPC.HHZ. 2019-07-20T07:53:14.97 0.6 undecidable manual S 276 0.2095 118 0.35 47
IV.FOSV.EHZ. 2019-07-20T07:53:13.31 0.6 undecidable manual S 176 0.1637 127 -0.16 49
IV.ARVD.HHZ. 2019-07-20T07:53:13.12 0.6 undecidable manual S 74 0.1493 130 -0.02 50
IV.PIEI.HHZ. 2019-07-20T07:53:13.29 0.6 undecidable manual S 297 0.17 125 -0.35 47
IV.MPAG.EHZ. 2019-07-20T07:53:13.45 0.6 undecidable manual S 4 0.1718 125 -0.22 48
IV.ATBU.EHZ. 2019-07-20T07:53:13.43 0.6 undecidable manual S 277 0.143 131 0.43 46
IV.SNTG.HHZ. 2019-07-20T07:53:11.43 0.6 undecidable manual P 145 0.2482 113 0.09 48
IV.ATVO.HNZ. 2019-07-20T07:53:11.35 0.1 undecidable manual P 253 0.2563 112 -0.11 97
IV.MPAG.EHZ. 2019-07-20T07:53:10.31 0.6 undecidable manual P 4 0.1718 125 0.12 49
IV.ATPC.HHZ. 2019-07-20T07:53:10.77 0.1 undecidable manual P 276 0.2095 118 0.03 100
IV.PIEI.HHZ. 2019-07-20T07:53:10.08 0.3 positive manual P 297 0.17 125 -0.09 74
IV.ATBU.EHZ. 2019-07-20T07:53:09.87 0.1 undecidable manual P 277 0.143 131 0.07 100
IV.FOSV.EHZ. 2019-07-20T07:53:09.78 0.1 undecidable manual P 176 0.1637 127 -0.29 95
IV.ARVD.HHZ. 2019-07-20T07:53:09.94 0.1 positive manual P 74 0.1493 130 0.06 99
IV.SSFR.HNZ. 2019-07-20T07:53:08.80 3.0 undecidable manual P 0.1 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.5 2.1E-5 0.62 AML other m 2019-07-20T07:53:13.32
IV.PIEI.HHE. ML:0.9 4.635E-5 0.1 AML other m 2019-07-20T07:53:13.70
IV.MPAG.EHE. ML:0.7 3.115E-5 0.22 AML other m 2019-07-20T07:53:13.66
IV.MPAG.EHN. ML:0.6 2.41E-5 0.16 AML other m 2019-07-20T07:53:13.73
IV.FOSV.EHE. ML:0.4 1.29725845E-5 0.1984 AML other m 2019-07-20T07:53:13.85
IV.FOSV.EHN. ML:0.6 2.732709E-5 0.1152 AML other m 2019-07-20T07:53:13.34
IV.ARVD.HHE. ML:0.2 9.286841E-6 0.1408 AML other m 2019-07-20T07:53:13.39
IV.ARVD.HHN. ML:0.4 1.31449835E-5 0.1408 AML other m 2019-07-20T07:53:13.28
IV.SNTG.HHE. ML:0.3 8.6616605E-6 0.1024 AML other m 2019-07-20T07:53:16.45
IV.SNTG.HHN. ML:0.3 1.05142315E-5 0.1984 AML other m 2019-07-20T07:53:20.40
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