Earthquake with magnitude of ML 1.2 on date 24-10-2020 and time 04:40:08 (UTC) in region 2 km N San Severino Marche (MC)

A magnitude ML 1.2 earthquake occured in region: 2 km N San Severino Marche (MC), on

  • 24-10-2020 04:40:08 (UTC)
  • 24-10-2020 06:40:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.25, 13.18 at 26 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
San Severino Marche MC 2 12726 12726
Serrapetrona MC 8 966 13692
Gagliole MC 9 620 14312
Tolentino MC 10 20069 34381
Belforte del Chienti MC 10 1886 36267
Castelraimondo MC 10 4587 40854
Caldarola MC 13 1823 42677
Treia MC 13 9403 52080
Matelica MC 14 9981 62061
Pollenza MC 14 6618 68679
Camporotondo di Fiastrone MC 15 563 69242
Cingoli MC 15 10352 79594
Camerino MC 15 6974 86568
Poggio San Vicino MC 16 246 86814
Cessapalombo MC 17 512 87326
Apiro MC 17 2280 89606
Urbisaglia MC 17 2628 92234
Pioraco MC 17 1134 93368
Colmurano MC 17 1263 94631
Cerreto d'Esi AN 18 3817 98448
Esanatoglia MC 19 2034 100482
Appignano MC 19 4213 104695
San Ginesio MC 19 3498 108193
Ripe San Ginesio MC 19 852 109045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km SW of Ancona (100861 inhabitants)
50 Km NE of Foligno (57155 inhabitants)
66 Km E of Perugia (166134 inhabitants)
68 Km S of Fano (60888 inhabitants)
77 Km S of Pesaro (94582 inhabitants)
78 Km NW of Teramo (54892 inhabitants)
88 Km NE 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
Reviewed
Rev100
ML 1.2 2020-10-24
04:40:08
43.25 13.18 26 2020-10-24
04:44:54
Sala Sismica INGV-Roma 84076921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-24 04:40:08 ± 0.28
Latitude 43.25 ± 0.01
Longitude 13.18 ± 0.01
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84076921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1432
Semi-minor axis of confidence ellipse (meter) 606
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 1430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 228
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42898
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 84076921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-24 04:44:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-10-24T04:40:24.61 0.6 undecidable manual S 186 0.4155 113 0.49 45
IV.MMO1.EHZ. 2020-10-24T04:40:22.56 0.6 undecidable manual S 162 0.3633 117 -0.17 47
IV.MF5.EHZ. 2020-10-24T04:40:22.70 0.6 undecidable manual S 141 0.331 119 0.83 39
IV.CESI.HHZ. 2020-10-24T04:40:21.61 0.1 undecidable manual S 220 0.313 121 0.2 96
IV.SNTG.HHZ. 2020-10-24T04:40:18.21 0.6 undecidable manual S 273 0.1727 140 0 48
IV.FDMO.HHZ. 2020-10-24T04:40:18.87 0.6 undecidable manual S 197 0.2194 132 -0.32 48
IV.ATCC.EHZ. 2020-10-24T04:40:17.47 0.3 positive manual P 261 0.3957 115 0.25 70
IV.SSFR.HHZ. 2020-10-24T04:40:17.13 3.0 positive manual P -1.19 0
IV.NRCA.HHZ. 2020-10-24T04:40:17.40 0.1 undecidable manual P 186 0.4155 113 -0.12 94
IV.CSP1.EHZ. 2020-10-24T04:40:17.49 0.6 undecidable manual S 173 0.1556 143 -0.42 49
IV.ASSB.HHZ. 2020-10-24T04:40:17.83 0.6 positive manual P 242 0.429 112 0.09 48
IV.MF5.EHZ. 2020-10-24T04:40:16.48 0.6 undecidable manual P 141 0.331 119 0.26 48
IV.ARVD.HHZ. 2020-10-24T04:40:16.31 3.0 positive manual P -2.4 0
IV.FOSV.EHZ. 2020-10-24T04:40:16.07 3.0 positive manual P -0.28 0
IV.MMO1.EHZ. 2020-10-24T04:40:16.45 0.6 negative manual P 162 0.3633 117 -0.27 46
IV.CESI.HHZ. 2020-10-24T04:40:15.90 0.1 undecidable manual P 220 0.313 121 -0.06 98
IV.FDMO.HHZ. 2020-10-24T04:40:14.05 0.6 undecidable manual P 197 0.2194 132 -0.63 44
IV.SNTG.HHZ. 2020-10-24T04:40:14.12 1.0 undecidable manual P 273 0.1727 140 0.01 25
IV.GUMA.HHZ. 2020-10-24T04:40:14.68 0.3 positive manual P 148 0.2167 133 0.04 75
IV.CSP1.EHZ. 2020-10-24T04:40:13.73 0.1 negative manual P 173 0.1556 143 -0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHE. ML:1 5.115E-5 0.18 AML other m 2020-10-24T04:40:18.40
IV.SNTG.HHN. ML:0.9 3.89E-5 0.16 AML other m 2020-10-24T04:40:18.35
IV.FDMO.HHE. ML:1.3 8.86E-5 1.4 AML other m 2020-10-24T04:40:18.25
IV.FDMO.HHN. ML:1.3 9.005E-5 0.14 AML other m 2020-10-24T04:40:19.10
IV.GUMA.HHE. ML:1.3 8.375E-5 0.88 AML other m 2020-10-24T04:40:19.97
IV.GUMA.HHN. ML:1.3 8.595E-5 0.36 AML other m 2020-10-24T04:40:19.71
IV.CESI.HHE. ML:1.1 3.955E-5 0.24 AML other m 2020-10-24T04:40:21.72
IV.CESI.HHN. ML:1.3 6.61E-5 1.12 AML other m 2020-10-24T04:40:21.73
IV.SSFR.HHE. ML:1.1 3.775E-5 0.64 AML other m 2020-10-24T04:40:23.59
IV.SSFR.HHN. ML:1 2.82E-5 0.5 AML other m 2020-10-24T04:40:24.86
IV.ASSB.HHE. ML:1.1 3.155E-5 0.9 AML other m 2020-10-24T04:40:25.76
IV.NRCA.HHE. ML:1.2 4.015E-5 0.16 AML other m 2020-10-24T04:40:25.60
IV.NRCA.HHN. ML:1.2 3.425E-5 1.34 AML other m 2020-10-24T04:40:25.70
IV.ASSB.HHN. ML:1.1 2.765E-5 1.06 AML other m 2020-10-24T04:40:25.88
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