Earthquake with magnitude of ML 0.5 on date 20-10-2019 and time 05:18:27 (Italy) in region 2 km W Serrapetrona (MC)

A magnitude ML 0.5 earthquake occured in region: 2 km W Serrapetrona (MC), on

  • 20-10-2019 03:18:27 (UTC)
  • 20-10-2019 05:18:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.17, 13.17 at 16 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
Serrapetrona MC 2 966 966
Belforte del Chienti MC 6 1886 2852
Caldarola MC 6 1823 4675
San Severino Marche MC 7 12726 17401
Camporotondo di Fiastrone MC 9 563 17964
Camerino MC 9 6974 24938
Cessapalombo MC 10 512 25450
Castelraimondo MC 10 4587 30037
Tolentino MC 10 20069 50106
Gagliole MC 11 620 50726
Pievebovigliana MC 14 866 51592
San Ginesio MC 14 3498 55090
Muccia MC 14 915 56005
Fiastra MC 15 559 56564
Pioraco MC 15 1134 57698
Colmurano MC 15 1263 58961
Acquacanina MC 16 121 59082
Fiordimonte MC 16 202 59284
Matelica MC 16 9981 69265
Ripe San Ginesio MC 16 852 70117
Pieve Torina MC 17 1458 71575
Urbisaglia MC 17 2628 74203
Gualdo MC 18 815 75018
Sefro MC 18 422 75440
Pollenza MC 18 6618 82058
Sarnano MC 18 3264 85322
Fiuminata MC 19 1402 86724
Treia MC 20 9403 96127

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NE of Foligno (57155 inhabitants)
57 Km SW of Ancona (100861 inhabitants)
64 Km E of Perugia (166134 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
76 Km S of Fano (60888 inhabitants)
80 Km NE of Terni (111501 inhabitants)
85 Km S of Pesaro (94582 inhabitants)
93 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
Rev 100 ML 0.5 2019-10-20
03:18:27
43.17 13.17 16 2019-10-20
04:52:16
Sala Sismica INGV-Roma 73350401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-20 03:18:27 ± 0.16
Latitude 43.17 ± 0.01
Longitude 13.17 ± 0.01
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73350401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 680
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.32915
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73350401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-20 04:52:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MNTT.EHZ. 2019-10-20T03:18:40.57 0.6 undecidable manual S 109 0.3292 101 0.8 39
IV.CESI.HHE. 2019-10-20T03:18:38.23 0.6 undecidable manual S 229 0.2545 106 0.63 42
IV.MF5.EHZ. 2019-10-20T03:18:38.54 0.6 undecidable manual S 131 0.2797 104 0.2 48
IV.MC2.EHE. 2019-10-20T03:18:37.61 0.3 undecidable manual S 177 0.259 105 -0.14 74
IV.SNTG.HHZ. 2019-10-20T03:18:36.00 0.6 undecidable manual S 297 0.1862 114 0.29 48
IV.CING.HNN. 2019-10-20T03:18:36.58 0.6 undecidable manual S 5 0.2059 111 0.34 48
IV.MML1.HNE. 2019-10-20T03:18:35.44 0.6 undecidable manual S 248 0.1547 121 0.56 45
IV.EL6.EHZ. 2019-10-20T03:18:35.29 0.6 undecidable manual S 343 0.1664 118 0.12 50
IV.MNTT.EHZ. 2019-10-20T03:18:34.55 1.0 negative manual P 109 0.3292 101 -0.01 25
IV.FDMO.HHZ. 2019-10-20T03:18:34.52 0.6 undecidable manual S 204 0.1466 123 -0.16 50
IV.CSP1.EHZ. 2019-10-20T03:18:33.19 0.6 undecidable manual S 162 0.0827 143 -0.09 51
IV.CESI.HHE. 2019-10-20T03:18:33.07 0.1 undecidable manual P 229 0.2545 106 -0.24 96
IV.MF5.EHZ. 2019-10-20T03:18:33.56 1.0 negative manual P 131 0.2797 104 -0.17 24
IV.MC2.EHE. 2019-10-20T03:18:33.02 0.1 undecidable manual P 177 0.259 105 -0.37 93
IV.CING.HNN. 2019-10-20T03:18:32.06 0.1 undecidable manual P 5 0.2059 111 -0.46 91
IV.SNTG.HHZ. 2019-10-20T03:18:32.31 0.6 undecidable manual P 297 0.1862 114 0.09 50
IV.FDMO.HHZ. 2019-10-20T03:18:31.47 0.6 positive manual P 204 0.1466 123 -0.15 50
IV.MML1.HNE. 2019-10-20T03:18:31.83 0.1 undecidable manual P 248 0.1547 121 0.09 100
IV.EL6.EHZ. 2019-10-20T03:18:31.85 1.0 positive manual P 343 0.1664 118 -0.05 25
IV.CSP1.EHZ. 2019-10-20T03:18:30.65 1.0 undecidable manual P 162 0.0827 143 -0.16 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.7 3.525E-5 1.12 AML other m 2019-10-20T03:18:34.91
IV.FDMO.HHN. ML:0.6 3.135E-5 1.84 AML other m 2019-10-20T03:18:34.94
IV.CSP1.EHE. ML:0.4 2.709402E-5 0.16 AML other m 2019-10-20T03:18:33.61
IV.CSP1.EHN. ML:0.6 3.8460345E-5 0.1808 AML other m 2019-10-20T03:18:34.45
IV.EL6.EHE. ML:0.5 2.0236231E-5 0.0992 AML other m 2019-10-20T03:18:36.25
IV.EL6.EHN. ML:0.4 1.5554865E-5 0.2 AML other m 2019-10-20T03:18:35.81
IV.SNTG.HHE. ML:0.2 1.1765824E-5 0.16 AML other m 2019-10-20T03:18:36.55
IV.SNTG.HHN. ML:0.2 1.2026135E-5 0.08 AML other m 2019-10-20T03:18:36.83
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