Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 20-10-2019 and time 06:57:24 (Italy) in region 1 km SW Serrapetrona (MC)

A magnitude ML 0.7 earthquake occured in region: 1 km SW Serrapetrona (MC), on

  • 20-10-2019 04:57:24 (UTC)
  • 20-10-2019 06:57:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.17, 13.19 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.

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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 1 966 966
Belforte del Chienti MC 4 1886 2852
Caldarola MC 5 1823 4675
San Severino Marche MC 6 12726 17401
Camporotondo di Fiastrone MC 8 563 17964
Tolentino MC 9 20069 38033
Cessapalombo MC 9 512 38545
Camerino MC 10 6974 45519
Castelraimondo MC 11 4587 50106
Gagliole MC 12 620 50726
San Ginesio MC 13 3498 54224
Colmurano MC 14 1263 55487
Pievebovigliana MC 15 866 56353
Ripe San Ginesio MC 15 852 57205
Muccia MC 15 915 58120
Fiastra MC 15 559 58679
Urbisaglia MC 16 2628 61307
Acquacanina MC 16 121 61428
Pioraco MC 16 1134 62562
Pollenza MC 17 6618 69180
Gualdo MC 17 815 69995
Fiordimonte MC 17 202 70197
Matelica MC 17 9981 80178
Sarnano MC 18 3264 83442
Pieve Torina MC 18 1458 84900
Treia MC 19 9403 94303
Loro Piceno MC 19 2401 96704
Sant'Angelo in Pontano MC 19 1436 98140
Sefro MC 19 422 98562
Bolognola MC 20 142 98704

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NE of Foligno (57155 inhabitants)
56 Km SW of Ancona (100861 inhabitants)
65 Km E of Perugia (166134 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
76 Km S of Fano (60888 inhabitants)
81 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 0.7 2019-10-20
04:57:24		 43.17 13.19 15 2019-10-20
05:15:07		 Sala Sismica INGV-Roma 73350711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-20 04:57:24 ± 0.15
Latitude 43.17 ± 0.01
Longitude 13.19 ± 0.01
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73350711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 730
Semi-minor axis of confidence ellipse (meter) 167
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.40649
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 73350711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-20 05:15:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2019-10-20T04:57:39.84 0.3 undecidable manual S 251 0.4065 98 0.5 69
IV.MNTT.EHZ. 2019-10-20T04:57:37.69 0.3 undecidable manual S 110 0.3184 101 0.95 60
IV.CESI.HHZ. 2019-10-20T04:57:35.61 0.3 undecidable manual S 231 0.2662 104 0.38 73
IV.MMO1.EHZ. 2019-10-20T04:57:35.43 0.6 undecidable manual S 159 0.2923 102 -0.56 45
IV.MF5.EHZ. 2019-10-20T04:57:35.82 0.3 undecidable manual S 133 0.2725 104 0.41 73
IV.MC2.EHZ. 2019-10-20T04:57:34.96 0.6 undecidable manual S 180 0.2617 104 -0.15 51
IV.MML1.HNZ. 2019-10-20T04:57:33.04 0.6 undecidable manual S 249 0.1682 117 0.54 48
IV.ASSB.HHZ. 2019-10-20T04:57:33.26 0.6 negative manual P 251 0.4065 98 0.09 50
IV.CING.HNZ. 2019-10-20T04:57:33.51 0.6 undecidable manual S 2 0.2023 111 0.09 53
IV.FDMO.HHZ. 2019-10-20T04:57:32.14 0.3 undecidable manual S 208 0.1547 120 -0.02 80
IV.EL6.EHZ. 2019-10-20T04:57:32.74 0.6 undecidable manual S 338 0.1682 117 0.25 51
IV.MNTT.EHZ. 2019-10-20T04:57:31.52 1.0 negative manual P 110 0.3184 101 -0.15 25
IV.MF5.EHZ. 2019-10-20T04:57:30.95 0.6 undecidable manual P 133 0.2725 104 0.05 52
IV.MC2.EHZ. 2019-10-20T04:57:30.24 0.1 undecidable manual P 180 0.2617 104 -0.49 94
IV.CSP1.EHZ. 2019-10-20T04:57:30.51 0.6 undecidable manual S 171 0.0827 142 -0.03 53
IV.CESI.HHZ. 2019-10-20T04:57:30.49 1.0 undecidable manual P 231 0.2662 104 -0.31 25
IV.MMO1.EHZ. 2019-10-20T04:57:30.76 0.6 undecidable manual P 159 0.2923 102 -0.48 47
IV.CING.HNZ. 2019-10-20T04:57:29.34 0.1 undecidable manual P 2 0.2023 111 -0.42 97
IV.EL6.EHZ. 2019-10-20T04:57:29.21 0.6 negative manual P 338 0.1682 117 -0.01 53
IV.FDMO.HHZ. 2019-10-20T04:57:28.88 0.3 positive manual P 208 0.1547 120 -0.15 78
IV.CSP1.EHZ. 2019-10-20T04:57:28.07 0.6 undecidable manual P 171 0.0827 142 -0.02 54
IV.MML1.HNZ. 2019-10-20T04:57:28.92 0.1 undecidable manual P 249 0.1682 117 -0.3 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 4.845E-5 0.26 AML other m 2019-10-20T04:57:32.33
IV.FDMO.HHN. ML:0.8 4.63E-5 0.16 AML other m 2019-10-20T04:57:32.36
IV.CESI.HHE. ML:0.8 3.02E-5 0.22 AML other m 2019-10-20T04:57:35.97
IV.CESI.HHN. ML:0.7 2.685E-5 0.1 AML other m 2019-10-20T04:57:36.21
IV.CSP1.EHE. ML:0.6 3.775757E-5 0.1408 AML other m 2019-10-20T04:57:31.10
IV.CSP1.EHN. ML:0.8 5.291384E-5 0.1792 AML other m 2019-10-20T04:57:31.78
IV.EL6.EHE. ML:0.6 3.0830195E-5 0.0992 AML other m 2019-10-20T04:57:33.67
IV.EL6.EHN. ML:0.6 2.3721537E-5 0.1408 AML other m 2019-10-20T04:57:33.51
IV.ASSB.HHE. ML:0.6 1.2476501E-5 0.24 AML other m 2019-10-20T04:57:40.72
IV.ASSB.HHN. ML:0.8 2.120456E-5 0.1216 AML other m 2019-10-20T04:57:40.96
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