Earthquake with magnitude of ML 0.8 on date 19-10-2020 and time 13:24:47 (Italy) in region 6 km W Montegallo (AP)

A magnitude ML 0.8 earthquake occured in region: 6 km W Montegallo (AP), on

  • 19-10-2020 11:24:47 (UTC)
  • 19-10-2020 13:24:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.84, 13.26 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
Montegallo AP 6 523 523
Montemonaco AP 9 604 1127
Arquata del Tronto AP 9 1178 2305
Castelsantangelo sul Nera MC 10 281 2586
Montefortino FM 13 1178 3764
Norcia PG 14 4957 8721
Ussita MC 15 444 9165
Acquasanta Terme AP 15 2916 12081
Visso MC 17 1107 13188
Accumoli RI 17 667 13855
Bolognola MC 17 142 13997
Amandola FM 17 3629 17626
Palmiano AP 18 196 17822
Preci PG 18 724 18546
Roccafluvione AP 18 2010 20556
Comunanza AP 18 3166 23722
Venarotta AP 20 2066 25788

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
56 Km N of L'Aquila (69753 inhabitants)
59 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km S of Ancona (100861 inhabitants)
89 Km W of Pescara (121014 inhabitants)
93 Km NW of Chieti (51815 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 0.8 2020-10-19
11:24:47
42.85 13.26 16 2020-10-19
11:30:42
Sala Sismica INGV-Roma 83909981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-19 11:24:47 ± 0.09
Latitude 42.85 ± 0.00
Longitude 13.26 ± 0.01
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83909981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 548
Semi-minor axis of confidence ellipse (meter) 320
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33904
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 83909981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-19 11:30:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRTC.HHZ. 2020-10-19T11:25:18.66 3.0 undecidable manual S -0.41 0
IV.PCRO.HNZ. 2020-10-19T11:25:15.27 3.0 undecidable manual S 0.27 0
IV.ATFO.HHZ. 2020-10-19T11:25:12.77 3.0 undecidable manual S 0.11 0
IV.FDMO.HHZ. 2020-10-19T11:24:56.57 0.6 undecidable manual S 327 0.2275 108 -0.22 48
IV.SMA1.EHZ. 2020-10-19T11:24:56.48 0.6 undecidable manual S 165 0.2221 109 -0.17 48
IV.TERO.HHZ. 2020-10-19T11:24:55.04 0.6 undecidable manual P 131 0.339 100 0.37 45
IV.MTRA.HNZ. 2020-10-19T11:24:54.25 0.3 undecidable manual S 130 0.1358 125 -0.1 73
IV.NRCA.HHZ. 2020-10-19T11:24:53.57 0.6 undecidable manual S 264 0.1043 135 -0.06 50
IV.MC2.EHZ. 2020-10-19T11:24:53.38 0.6 undecidable manual S 324 0.0818 143 0.18 50
IV.CSP1.EHZ. 2020-10-19T11:24:53.10 0.3 positive manual P 351 0.2491 106 -0.08 74
IV.MF5.EHZ. 2020-10-19T11:24:52.84 1.0 undecidable manual P 46 0.2068 111 0.36 23
IV.SMA1.EHZ. 2020-10-19T11:24:52.63 1.0 undecidable manual P 165 0.2221 109 -0.11 24
IV.FDMO.HHZ. 2020-10-19T11:24:52.68 0.6 positive manual P 327 0.2275 108 -0.14 49
IV.MMO1.EHZ. 2020-10-19T11:24:52.86 0.6 undecidable manual S 44 0.0755 145 -0.22 48
IV.MTRA.HNZ. 2020-10-19T11:24:51.41 0.3 undecidable manual P 130 0.1358 125 0 76
IV.NRCA.HHZ. 2020-10-19T11:24:51.08 0.1 undecidable manual P 264 0.1043 135 0.08 100
IV.MMO1.EHZ. 2020-10-19T11:24:50.70 0.6 positive manual P 44 0.0755 145 0.02 51
IV.MC2.EHZ. 2020-10-19T11:24:50.95 0.6 undecidable manual P 324 0.0818 143 0.2 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.9 7.189474E-5 0.0576 AML other m 2020-10-19T11:24:53.84
IV.NRCA.HHN. ML:0.8 6.185033E-5 0.1408 AML other m 2020-10-19T11:24:53.98
IV.NRCA.HNE. ML:1 8.635592E-5 0.2304 AML other m 2020-10-19T11:24:53.84
IV.NRCA.HNN. ML:1.2 0.000141313285 0.7104 AML other m 2020-10-19T11:24:53.63
IV.FDMO.HHE. ML:0.3 1.15914585E-5 0.1984 AML other m 2020-10-19T11:24:57.36
IV.FDMO.HHN. ML:0.7 2.6165585E-5 0.2624 AML other m 2020-10-19T11:24:56.93
IV.MF5.EHE. ML:0.6 2.365157E-5 0.7168 AML other m 2020-10-19T11:25:04.26
IV.MF5.EHN. ML:0.7 3.16244035E-5 0.3968 AML other m 2020-10-19T11:24:57.12
IV.CSP1.EHE. ML:0.5 1.6222503E-5 0.4992 AML other m 2020-10-19T11:25:07.16
IV.CSP1.EHN. ML:0.8 3.1842145E-5 0.6016 AML other m 2020-10-19T11:25:03.16
IV.TERO.HHE. ML:0.6 1.6840232E-5 0.064 AML other m 2020-10-19T11:25:00.70
IV.TERO.HHN. ML:0.8 1.900901E-5 0.0768 AML other m 2020-10-19T11:25:01.06
IV.TERO.HNE. ML:1.5 0.000100893135 0.6592 AML other m 2020-10-19T11:24:57.41
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