Earthquake with magnitude of ML 1.0 on date 24-10-2020 and time 06:11:58 (Italy) in region 2 km NE San Severino Marche (MC)

A magnitude ML 1.0 earthquake occured in region: 2 km NE San Severino Marche (MC), on

  • 24-10-2020 04:11:58 (UTC)
  • 24-10-2020 06:11:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.24, 13.19 at 25 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 7 966 13692
Tolentino MC 9 20069 33761
Belforte del Chienti MC 9 1886 35647
Gagliole MC 10 620 36267
Castelraimondo MC 11 4587 40854
Caldarola MC 12 1823 42677
Treia MC 13 9403 52080
Pollenza MC 13 6618 58698
Camporotondo di Fiastrone MC 14 563 59261
Matelica MC 15 9981 69242
Cingoli MC 15 10352 79594
Camerino MC 15 6974 86568
Cessapalombo MC 16 512 87080
Urbisaglia MC 16 2628 89708
Colmurano MC 16 1263 90971
Poggio San Vicino MC 17 246 91217
Apiro MC 18 2280 93497
Pioraco MC 18 1134 94631
San Ginesio MC 18 3498 98129
Ripe San Ginesio MC 18 852 98981
Appignano MC 19 4213 103194
Cerreto d'Esi AN 19 3817 107011
Esanatoglia MC 20 2034 109045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km SW of Ancona (100861 inhabitants)
51 Km NE of Foligno (57155 inhabitants)
67 Km E of Perugia (166134 inhabitants)
68 Km S of Fano (60888 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
78 Km S of Pesaro (94582 inhabitants)
88 Km NE of Terni (111501 inhabitants)
100 Km N of L'Aquila (69753 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 1.0 2020-10-24
04:11:58
43.24 13.19 25 2020-10-24
04:20:23
Sala Sismica INGV-Roma 84076081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-24 04:11:58 ± 0.13
Latitude 43.24 ± 0.00
Longitude 13.19 ± 0.01
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84076081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 243
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.134
Epicentral distance of station farthest from the epicenter (degree) 0.32106
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 84076081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-24 04:20:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-10-24T04:12:11.23 0.6 undecidable manual S 221 0.3148 119 0.18 47
IV.FDMO.HHZ. 2020-10-24T04:12:08.57 0.6 undecidable manual S 200 0.2176 130 -0.1 48
IV.CSP1.EHZ. 2020-10-24T04:12:07.24 0.1 undecidable manual S 176 0.1502 142 -0.03 100
IV.SNTG.HHZ. 2020-10-24T04:12:07.85 0.6 undecidable manual S 274 0.1817 136 -0.04 50
IV.CING.HNE. 2020-10-24T04:12:07.08 0.6 undecidable manual S 2 0.134 145 0.09 49
IV.MF5.EHZ. 2020-10-24T04:12:06.11 1.0 undecidable manual P 142 0.3211 118 0.37 23
IV.CESI.HHZ. 2020-10-24T04:12:05.58 0.3 undecidable manual P 221 0.3148 119 -0.07 72
IV.FDMO.HHZ. 2020-10-24T04:12:04.23 0.6 negative manual P 200 0.2176 130 -0.05 49
IV.CING.HNE. 2020-10-24T04:12:03.27 0.1 undecidable manual P 2 0.134 145 -0.04 100
IV.CSP1.EHZ. 2020-10-24T04:12:03.44 0.1 undecidable manual P 176 0.1502 142 -0.03 99
IV.SNTG.HHZ. 2020-10-24T04:12:03.90 0.3 undecidable manual P 274 0.1817 136 0.07 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.9 4.696096E-5 0.1216 AML other m 2020-10-24T04:12:07.79
IV.CSP1.EHN. ML:0.9 4.189479E-5 0.24 AML other m 2020-10-24T04:12:07.52
IV.SNTG.HHE. ML:0.7 2.577889E-5 0.1792 AML other m 2020-10-24T04:12:08.23
IV.SNTG.HHN. ML:0.6 2.0862415E-5 0.2176 AML other m 2020-10-24T04:12:08.28
IV.SNTG.HNE. ML:1.6 0.0001959202 1.0784 AML other m 2020-10-24T04:12:18.07
IV.SNTG.HNN. ML:1.6 0.00019287035 1.2 AML other m 2020-10-24T04:12:15.55
IV.FDMO.HHE. ML:0.8 2.831331E-5 0.1184 AML other m 2020-10-24T04:12:08.99
IV.FDMO.HHN. ML:1 4.027585E-5 0.1408 AML other m 2020-10-24T04:12:08.84
IV.CESI.HHE. ML:0.7 1.640556E-5 0.24 AML other m 2020-10-24T04:12:11.46
IV.CESI.HHN. ML:0.9 2.507044E-5 0.16 AML other m 2020-10-24T04:12:11.47
IV.CESI.HNE. ML:1.5 0.000105812665 0.6592 AML other m 2020-10-24T04:12:13.28
IV.CESI.HNN. ML:2.2 0.0005600933 0.3904 AML other m 2020-10-24T04:12:15.18
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download