Earthquake with magnitude of ML 0.8 on date 27-09-2020 and time 13:59:13 (Italy) in region 3 km W Serra Sant'Abbondio (PU)

A magnitude ML 0.8 earthquake occured in region: 3 km W Serra Sant'Abbondio (PU), on

  • 27-09-2020 11:59:13 (UTC)
  • 27-09-2020 13:59:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.48, 12.74 at 14 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 3 1027 1027
Frontone PU 4 1300 2327
Cantiano PU 9 2245 4572
Cagli PU 10 8731 13303
Scheggia e Pascelupo PG 10 1393 14696
Sassoferrato AN 11 7285 21981
Pergola PU 12 6333 28314
Costacciaro PG 14 1216 29530
Acqualagna PU 16 4393 33923
Arcevia AN 16 4612 38535
Sigillo PG 17 2404 40939
Genga AN 17 1797 42736
Gubbio PG 19 32216 74952

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km SW of Fano (60888 inhabitants)
50 Km S of Pesaro (94582 inhabitants)
51 Km NE of Perugia (166134 inhabitants)
59 Km N of Foligno (57155 inhabitants)
65 Km W of Ancona (100861 inhabitants)
66 Km S of Rimini (147750 inhabitants)
69 Km E of Arezzo (99543 inhabitants)
83 Km SE of Cesena (96758 inhabitants)
100 Km SE of Forlì (117913 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 0.8 2020-09-27
11:59:13
43.48 12.74 14 2020-09-27
12:06:30
Sala Sismica INGV-Roma 83298881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-27 11:59:13 ± 0.06
Latitude 43.48 ± 0.00
Longitude 12.74 ± 0.00
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83298881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 288
Semi-minor axis of confidence ellipse (meter) 157
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30577
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 83298881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-27 12:06:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.HNE. 2020-09-27T11:59:25.29 0.3 undecidable manual S 194 0.3058 97 0.26 67
IV.RIBO.EHZ.01 2020-09-27T11:59:24.46 3.0 positive manual Pn 0.12 0
IV.MURB.HHN. 2020-09-27T11:59:24.23 0.3 undecidable manual S 216 0.2698 99 0.27 68
IV.ATPC.HHE. 2020-09-27T11:59:22.22 0.3 undecidable manual S 270 0.2059 105 0.12 71
IV.BARO.EHZ. 2020-09-27T11:59:21.14 3.0 undecidable manual Pn -3.25 0
IV.NARO.HHZ. 2020-09-27T11:59:21.18 0.1 undecidable manual S 318 0.1727 110 0.02 97
IV.FOSV.EHZ. 2020-09-27T11:59:21.42 0.3 undecidable manual S 175 0.188 107 -0.18 71
IV.MPAG.EHZ. 2020-09-27T11:59:20.58 0.1 undecidable manual S 5 0.1475 116 0.11 96
IV.ATCC.HNE. 2020-09-27T11:59:20.03 0.1 undecidable manual P 194 0.3058 97 -0.1 93
IV.ARVD.HHZ. 2020-09-27T11:59:20.55 0.3 undecidable manual S 84 0.1466 116 0.1 72
IV.MURB.HHN. 2020-09-27T11:59:19.68 1.0 undecidable manual P 216 0.2698 99 0.16 23
IV.ATSC.EHN. 2020-09-27T11:59:18.56 0.1 undecidable manual S 214 0.0701 143 -0.14 97
IV.ATPC.HHE. 2020-09-27T11:59:18.41 0.1 undecidable manual P 270 0.2059 105 -0.03 96
IV.FRON.EHZ. 2020-09-27T11:59:18.22 0.1 undecidable manual S 343 0.0369 160 0 100
IV.SSFR.HHN. 2020-09-27T11:59:18.46 0.1 undecidable manual S 147 0.0558 150 0.01 99
IV.ARVD.HHZ. 2020-09-27T11:59:17.52 0.1 undecidable manual P 84 0.1466 116 0.03 97
IV.MPAG.EHZ. 2020-09-27T11:59:17.51 0.1 undecidable manual P 5 0.1475 116 0.01 98
IV.NARO.HHZ. 2020-09-27T11:59:17.72 0.1 undecidable manual P 318 0.1727 110 -0.19 93
IV.FOSV.EHZ. 2020-09-27T11:59:17.96 0.1 undecidable manual P 175 0.188 107 -0.2 94
IV.ATSC.EHN. 2020-09-27T11:59:16.41 0.1 undecidable manual P 214 0.0701 143 -0.07 98
IV.FRON.EHZ. 2020-09-27T11:59:16.28 0.1 undecidable manual P 343 0.0369 160 0.08 99
IV.SSFR.HHN. 2020-09-27T11:59:16.38 0.1 undecidable manual P 147 0.0558 150 0.04 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:0.9 9.5E-5 0.3 AML other m 2020-09-27T11:59:18.29
IV.FRON.EHN. ML:0.8 7.1E-5 0.06 AML other m 2020-09-27T11:59:18.62
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