Earthquake with magnitude of ML 0.9 on date 24-10-2020 and time 06:15:18 (Italy) in region 3 km E San Severino Marche (MC)

A magnitude ML 0.9 earthquake occured in region: 3 km E San Severino Marche (MC), on

  • 24-10-2020 04:15:18 (UTC)
  • 24-10-2020 06:15:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.23, 13.21 at 24 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 3 12726 12726
Serrapetrona MC 6 966 13692
Tolentino MC 6 20069 33761
Belforte del Chienti MC 8 1886 35647
Caldarola MC 10 1823 37470
Pollenza MC 12 6618 44088
Camporotondo di Fiastrone MC 12 563 44651
Gagliole MC 12 620 45271
Treia MC 12 9403 54674
Castelraimondo MC 13 4587 59261
Urbisaglia MC 14 2628 61889
Colmurano MC 14 1263 63152
Cessapalombo MC 14 512 63664
Camerino MC 16 6974 70638
Ripe San Ginesio MC 16 852 71490
Cingoli MC 16 10352 81842
San Ginesio MC 16 3498 85340
Matelica MC 17 9981 95321
Loro Piceno MC 18 2401 97722
Appignano MC 18 4213 101935
Apiro MC 19 2280 104215
Pioraco MC 19 1134 105349
Poggio San Vicino MC 19 246 105595

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km SW of Ancona (100861 inhabitants)
51 Km NE of Foligno (57155 inhabitants)
68 Km E of Perugia (166134 inhabitants)
70 Km S of Fano (60888 inhabitants)
75 Km NW of Teramo (54892 inhabitants)
79 Km SE of Pesaro (94582 inhabitants)
88 Km NE of Terni (111501 inhabitants)
99 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 0.9 2020-10-24
04:15:18
43.23 13.21 24 2020-10-24
04:25:55
Sala Sismica INGV-Roma 84076231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-24 04:15:18 ± 0.15
Latitude 43.23 ± 0.00
Longitude 13.21 ± 0.01
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84076231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 629
Semi-minor axis of confidence ellipse (meter) 532
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
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 13
Number of defining phases 12
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) 0.31926
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 84076231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-24 04:25:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2020-10-24T04:15:32.33 3.0 positive manual P 0.13 0
IV.CESI.HHZ. 2020-10-24T04:15:31.70 0.6 undecidable manual S 226 0.3193 117 0.08 77
IV.FDMO.HHZ. 2020-10-24T04:15:29.10 0.6 undecidable manual S 206 0.2149 129 0.08 77
IV.SNTG.HHZ. 2020-10-24T04:15:28.64 0.6 undecidable manual S 277 0.2005 131 -0.06 77
IV.CING.HHN. 2020-10-24T04:15:27.61 0.1 undecidable manual S 355 0.1448 141 0.06 155
IV.EL6.EHZ. 2020-10-24T04:15:27.23 0.6 undecidable manual S 321 0.1277 145 -0.03 77
IV.PF6.EHE. 2020-10-24T04:15:26.72 0.1 undecidable manual S 189 0.0944 153 -0.04 155
IV.CESI.HHZ. 2020-10-24T04:15:26.24 0.6 negative manual P 226 0.3193 117 0.02 77
IV.SNTG.HHZ. 2020-10-24T04:15:24.45 0.6 undecidable manual P 277 0.2005 131 -0.08 77
IV.FDMO.HHZ. 2020-10-24T04:15:24.74 0.6 negative manual P 206 0.2149 129 0.02 77
IV.EL6.EHZ. 2020-10-24T04:15:23.59 1.0 undecidable manual P 321 0.1277 145 -0.11 39
IV.CING.HHN. 2020-10-24T04:15:23.85 0.1 undecidable manual P 355 0.1448 141 -0.02 155
IV.PF6.EHE. 2020-10-24T04:15:23.41 0.1 undecidable manual P 189 0.0944 153 0 155
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 3.315E-5 0.6 AML other m 2020-10-24T04:15:29.20
IV.FDMO.HHN. ML:0.9 3.52E-5 0.14 AML other m 2020-10-24T04:15:29.35
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