Earthquake with magnitude of ML 0.5 on date 12-08-2020 and time 09:21:02 (Italy) in region 2 km SE Acqualagna (PU)

A magnitude ML 0.5 earthquake occured in region: 2 km SE Acqualagna (PU), on

  • 12-08-2020 07:21:02 (UTC)
  • 12-08-2020 09:21:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6, 12.69 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acqualagna PU 2 4393 4393
Cagli PU 7 8731 13124
Fermignano PU 9 8596 21720
Frontone PU 11 1300 23020
Pergola PU 12 6333 29353
Fossombrone PU 13 9575 38928
Serra Sant'Abbondio PU 14 1027 39955
Urbino PU 14 15019 54974
Piobbico PU 15 2029 57003
Urbania PU 15 7099 64102
Cantiano PU 15 2245 66347
Isola del Piano PU 17 594 66941
Sant'Ippolito PU 17 1563 68504
Fratte Rosa PU 17 966 69470
Montefelcino PU 18 2671 72141
Peglio PU 19 696 72837
Petriano PU 20 2829 75666

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Fano (60888 inhabitants)
38 Km SW of Pesaro (94582 inhabitants)
52 Km S of Rimini (147750 inhabitants)
61 Km NE of Perugia (166134 inhabitants)
67 Km W of Ancona (100861 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
69 Km SE of Cesena (96758 inhabitants)
72 Km N of Foligno (57155 inhabitants)
86 Km SE of Forlì (117913 inhabitants)
99 Km SE of Ravenna (159116 inhabitants)
100 Km SE of Faenza (58541 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
Reviewed
Rev100
ML 0.5 2020-08-12
07:21:02
43.6 12.69 16 2020-08-12
07:33:04
Sala Sismica INGV-Roma 81900451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-12 07:21:02 ± 0.47
Latitude 43.60 ± 0.02
Longitude 12.69 ± 0.02
Depth (km) 16 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81900451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1970
Semi-minor axis of confidence ellipse (meter) 1545
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 231
Circular confidence region, given by single value of horizontal uncertainty (meter) 1970
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 36
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.21134
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 81900451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-12 07:33:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SENA.HHZ. 2020-08-12T07:22:52.83 3.0 undecidable manual Sn -3.12 0
CR.ZAG.BHZ. 2020-08-12T07:22:45.44 3.0 undecidable manual Sg 15 0
IV.MILN.HHZ. 2020-08-12T07:22:43.94 3.0 undecidable manual Sg 11.54 0
IV.CMPR.HHZ. 2020-08-12T07:22:42.43 3.0 undecidable manual Sn -6.24 0
IV.ILOS.HHZ. 2020-08-12T07:22:27.29 3.0 negative manual Pn 2.95 0
IV.SERS.HHZ. 2020-08-12T07:22:25.13 3.0 undecidable manual Pn 0.83 0
IV.EUCT.HNZ. 2020-08-12T07:22:24.90 3.0 undecidable manual Sn -5.47 0
RD.PGF.BHZ. 2020-08-12T07:22:20.86 3.0 undecidable manual Sn -9.08 0
IV.RNI2.HHZ. 2020-08-12T07:22:12.68 3.0 undecidable manual Sg 3.78 0
CH.FUSIO.HHZ. 2020-08-12T07:22:10.88 3.0 undecidable manual Pn 5.77 0
IV.CELB.HHZ. 2020-08-12T07:22:10.37 3.0 undecidable manual Sg 2.29 0
IV.CMPR.HHZ. 2020-08-12T07:22:06.10 3.0 undecidable manual Pg 4.32 0
IV.ROSPO.HHZ. 2020-08-12T07:22:06.01 3.0 undecidable manual Sn -0.4 0
IV.AGLI.HHZ. 2020-08-12T07:22:05.24 3.0 undecidable manual Pg 4.46 0
RD.PGF.BHZ. 2020-08-12T07:21:56.22 3.0 undecidable manual Pg 4.96 0
GU.GSCL.HHZ. 2020-08-12T07:21:55.16 3.0 undecidable manual Sn -3.47 0
GU.GORR.HHZ. 2020-08-12T07:21:50.02 3.0 undecidable manual Pg 3.17 0
OX.CIMO.HHZ. 2020-08-12T07:21:49.27 3.0 positive manual Pg 3.77 0
IV.ZCCA.HHZ. 2020-08-12T07:21:46.89 3.0 undecidable manual Sn -5.47 0
IV.VAGA.HHZ. 2020-08-12T07:21:42.56 3.0 negative manual Pn -0.83 0
IV.CTI.HHZ. 2020-08-12T07:21:41.77 3.0 undecidable manual Pn -2.01 0
IV.BRSN.EHZ. 2020-08-12T07:21:17.20 3.0 negative manual P -1.97 0
IV.SSFR.HNZ. 2020-08-12T07:21:10.34 0.6 undecidable manual S 159 0.1799 116 -0.05 50
IV.ATPC.HNE. 2020-08-12T07:21:08.79 1.0 undecidable manual P 234 0.2113 111 1.33 16
IV.MCIF.HNN. 2020-08-12T07:21:08.71 1.0 undecidable manual P 348 0.2113 111 1.26 17
IV.PIEI.HHZ. 2020-08-12T07:21:08.89 0.6 undecidable manual S 239 0.134 126 -0.33 47
IV.FRON.EHE. 2020-08-12T07:21:08.36 0.6 undecidable manual S 165 0.0899 140 0.1 51
IV.MPAG.EHZ. 2020-08-12T07:21:07.91 0.6 undecidable manual S 63 0.0531 155 0.23 50
IV.NARO.HHZ. 2020-08-12T07:21:07.89 0.6 undecidable manual S 274 0.0818 143 -0.23 49
IV.ATSC.EHZ. 2020-08-12T07:21:07.97 0.1 undecidable manual P 182 0.1808 116 1 76
IV.PIEI.HHZ. 2020-08-12T07:21:06.01 0.6 negative manual P 239 0.134 126 -0.28 48
IV.SSFR.HNZ. 2020-08-12T07:21:06.88 0.1 undecidable manual P 159 0.1799 116 -0.08 100
IV.ARVD.HHN. 2020-08-12T07:21:06.16 0.6 undecidable manual P 121 0.2086 111 -1.25 33
IV.FRON.EHE. 2020-08-12T07:21:05.52 0.1 undecidable manual P 165 0.0899 140 -0.22 99
IV.MPAG.EHZ. 2020-08-12T07:21:05.45 0.3 undecidable manual P 63 0.0531 155 0.05 78
IV.NARO.HHZ. 2020-08-12T07:21:05.40 0.1 undecidable manual P 274 0.0818 143 -0.25 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPAG.EHE. ML:0.8 6.68E-5 1.7 AML other m 2020-08-12T07:21:07.12
IV.NARO.HHE. ML:0.6 3.375E-5 0.06 AML other m 2020-08-12T07:21:08.09
IV.MPAG.EHN. ML:0.5 3.34E-5 0.16 AML other m 2020-08-12T07:21:08.41
IV.NARO.HHN. ML:0.4 2.61E-5 0.52 AML other m 2020-08-12T07:21:08.32
IV.PIEI.HHE. ML:0.4 2.03E-5 0.8 AML other m 2020-08-12T07:21:09.54
IV.PIEI.HHN. ML:0.1 1.21E-5 0.9 AML other m 2020-08-12T07:21:10.28
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