Earthquake with magnitude of ML 1.3 on date 25-10-2020 and time 02:59:06 (UTC) in region 3 km SE Serra San Quirico (AN)

A magnitude ML 1.3 earthquake occured in region: 3 km SE Serra San Quirico (AN), on

  • 25-10-2020 02:59:06 (UTC)
  • 25-10-2020 03:59:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.42, 13.03 at 15 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 San Quirico AN 3 2850 2850
Mergo AN 5 1037 3887
Poggio San Vicino MC 7 246 4133
Cupramontana AN 7 4756 8889
Rosora AN 7 1985 10874
Genga AN 8 1797 12671
Castelplanio AN 9 3540 16211
Apiro MC 9 2280 18491
Maiolati Spontini AN 9 6248 24739
Poggio San Marcello AN 10 693 25432
Monte Roberto AN 11 3061 28493
Arcevia AN 11 4612 33105
Castelbellino AN 12 4947 38052
Montecarotto AN 12 1987 40039
San Paolo di Jesi AN 12 933 40972
Cerreto d'Esi AN 12 3817 44789
Staffolo AN 13 2253 47042
Serra de' Conti AN 13 3746 50788
Sassoferrato AN 14 7285 58073
Fabriano AN 14 31480 89553
Cingoli MC 16 10352 99905
Barbara AN 17 1368 101273
Matelica MC 19 9981 111254

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km W of Ancona (100861 inhabitants)
47 Km S of Fano (60888 inhabitants)
55 Km S of Pesaro (94582 inhabitants)
59 Km NE of Foligno (57155 inhabitants)
63 Km NE of Perugia (166134 inhabitants)
80 Km SE of Rimini (147750 inhabitants)
93 Km E of Arezzo (99543 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 1.3 2020-10-25
02:59:06
43.43 13.03 15 2020-10-25
03:17:40
Sala Sismica INGV-Roma 84106871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-25 02:59:06 ± 0.06
Latitude 43.43 ± 0.00
Longitude 13.03 ± 0.00
Depth (km) 15 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84106871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 350
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.04
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33904
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 84106871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-25 03:17:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MNTT.EHZ. 2020-10-25T02:59:18.46 3.0 positive manual P 0.46 0
IV.SNTG.HHZ. 2020-10-25T02:59:14.90 0.6 undecidable manual S 201 0.1826 114 -0.04 49
IV.ATCC.EHZ. 2020-10-25T02:59:14.68 3.0 undecidable manual Pg 0.02 0
IV.ATFO.HHZ. 2020-10-25T02:59:14.16 0.6 negative manual P 260 0.339 100 0.07 47
IV.NARO.HHZ. 2020-10-25T02:59:14.60 3.0 negative manual Pn -0.23 0
IV.CSP1.EHZ. 2020-10-25T02:59:14.21 3.0 negative manual Pg -0.22 0
IV.MPAG.EHZ. 2020-10-25T02:59:13.12 3.0 negative manual P -0.09 0
IV.EL6.EHZ. 2020-10-25T02:59:13.15 0.6 undecidable manual S 152 0.1088 133 0.05 50
IV.FOSV.EHZ. 2020-10-25T02:59:12.31 1.0 positive manual P 237 0.2356 106 -0.05 24
IV.ARVD.HHZ. 2020-10-25T02:59:12.86 0.6 undecidable manual S 318 0.098 137 -0.01 50
IV.FRON.EHZ. 2020-10-25T02:59:12.44 0.6 positive manual P 293 0.2401 106 0 49
IV.SNTG.HHZ. 2020-10-25T02:59:11.43 0.6 undecidable manual P 201 0.1826 114 -0.07 49
IV.SSFR.HHZ. 2020-10-25T02:59:11.51 0.1 positive manual P 274 0.1817 114 0.02 99
IV.EL6.EHZ. 2020-10-25T02:59:10.41 0.1 negative manual P 152 0.1088 133 -0.03 100
IV.ARVD.HHZ. 2020-10-25T02:59:10.25 1.0 undecidable manual P 318 0.098 137 -0.06 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EL6.EHN. ML:1.5 0.000249 0.2 AML other m 2020-10-25T02:59:13.54
IV.EL6.EHE. ML:1.5 0.000298 0.16 AML other m 2020-10-25T02:59:13.65
IV.SNTG.HHN. ML:0.9 5.355E-5 0.24 AML other m 2020-10-25T02:59:15.28
IV.SSFR.HHE. ML:1.3 0.0001315 0.26 AML other m 2020-10-25T02:59:15.41
IV.SNTG.HHE. ML:0.9 4.885E-5 0.2 AML other m 2020-10-25T02:59:15.42
IV.SSFR.HHN. ML:1.3 0.0001265 0.16 AML other m 2020-10-25T02:59:16.25
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