Earthquake with magnitude of ML 1.4 on date 25-09-2020 and time 01:24:49 (UTC) in region 4 km E Preci (PG)

A magnitude ML 1.4 earthquake occured in region: 4 km E Preci (PG), on

  • 25-09-2020 01:24:49 (UTC)
  • 25-09-2020 03:24:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.08 at 10 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
Preci PG 4 724 724
Castelsantangelo sul Nera MC 7 281 1005
Visso MC 8 1107 2112
Norcia PG 8 4957 7069
Ussita MC 10 444 7513
Sellano PG 13 1079 8592
Cerreto di Spoleto PG 14 1075 9667
Monte Cavallo MC 16 145 9812
Cascia PG 17 3217 13029
Bolognola MC 19 142 13171
Fiordimonte MC 19 202 13373

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
100 Km N of Guidonia Montecelio (88673 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 1.4 2020-09-25
01:24:49
42.86 13.08 11 2020-09-25
01:30:49
Sala Sismica INGV-Roma 83219721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-25 01:24:49 ± 0.07
Latitude 42.86 ± 0.00
Longitude 13.08 ± 0.01
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83219721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 401
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 280
Circular confidence region, given by single value of horizontal uncertainty (meter) 470
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 27
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36602
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 83219721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-25 01:30:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FRON.EHZ. 2020-09-25T01:25:09.95 3.0 undecidable manual S -0.52 0
IV.ATFO.HHZ. 2020-09-25T01:25:08.64 3.0 undecidable manual S -0.12 0
IV.MOMA.HHZ. 2020-09-25T01:25:04.03 3.0 undecidable manual S 0.13 0
IV.ARRO.EHZ. 2020-09-25T01:25:02.76 0.3 undecidable manual S 219 0.366 50 0.14 71
IV.MF5.EHZ. 2020-09-25T01:25:01.84 0.3 undecidable manual S 66 0.3049 50 1.04 53
IV.SMA1.EHZ. 2020-09-25T01:25:00.42 0.3 undecidable manual S 141 0.2995 50 -0.24 71
IV.MTRA.EHZ. 2020-09-25T01:24:59.08 0.3 undecidable manual S 115 0.2563 50 -0.29 70
IV.LNSS.HHZ. 2020-09-25T01:24:59.57 0.6 undecidable manual S 186 0.2626 50 0.01 50
IV.TERO.HHZ. 2020-09-25T01:24:58.30 3.0 undecidable manual P 0.61 0
IV.CSP1.EHZ. 2020-09-25T01:24:58.89 0.3 undecidable manual S 22 0.2455 50 -0.16 72
IV.CESI.HHZ. 2020-09-25T01:24:57.28 0.3 undecidable manual S 318 0.1898 117 -0.09 74
IV.FDMO.HHZ. 2020-09-25T01:24:56.48 0.3 undecidable manual S 2 0.1727 119 -0.29 72
IV.ARRO.EHZ. 2020-09-25T01:24:56.94 0.1 undecidable manual P 219 0.366 50 0 97
IV.MMO1.EHZ. 2020-09-25T01:24:56.74 0.3 undecidable manual S 79 0.1853 117 -0.45 69
IV.MF5.EHZ. 2020-09-25T01:24:56.10 1.0 undecidable manual P 66 0.3049 50 0.2 24
IV.LNSS.HHZ. 2020-09-25T01:24:55.21 0.1 undecidable manual P 186 0.2626 50 0.04 99
IV.SMA1.EHZ. 2020-09-25T01:24:55.69 0.1 undecidable manual P 141 0.2995 50 -0.12 96
IV.MTRA.EHZ. 2020-09-25T01:24:54.93 1.0 undecidable manual P 115 0.2563 50 -0.14 24
IV.MC2.EHZ. 2020-09-25T01:24:54.66 0.3 undecidable manual S 60 0.0935 135 0.35 72
IV.CSP1.EHZ. 2020-09-25T01:24:54.89 0.1 undecidable manual P 22 0.2455 50 0.01 100
IV.GAVE.EHZ. 2020-09-25T01:24:53.73 3.0 undecidable manual P 0
IV.FDMO.HHZ. 2020-09-25T01:24:53.51 1.0 undecidable manual P 2 0.1727 119 -0.05 25
IV.MMO1.EHZ. 2020-09-25T01:24:53.60 0.1 undecidable manual P 79 0.1853 117 -0.21 97
IV.NRCA.HNZ. 2020-09-25T01:24:53.22 0.3 undecidable manual S 140 0.0396 157 0.07 77
IV.CESI.HHZ. 2020-09-25T01:24:53.87 0.1 undecidable manual P 318 0.1898 117 -0.04 100
IV.MC2.EHZ. 2020-09-25T01:24:52.36 0.1 undecidable manual P 60 0.0935 135 0.21 98
IV.NRCA.HNZ. 2020-09-25T01:24:51.69 0.1 undecidable manual P 140 0.0396 157 0.21 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2 0.001815 0.08 AML other m 2020-09-25T01:24:53.28
IV.NRCA.HNN. ML:2 0.00165 0.1 AML other m 2020-09-25T01:24:53.28
IV.NRCA.HNE. ML:1.7 0.0008735 0.18 AML other m 2020-09-25T01:24:53.35
IV.NRCA.HHE. ML:1.7 0.0008855 0.06 AML other m 2020-09-25T01:24:53.41
IV.FDMO.HHE. ML:1.2 0.00011645 0.2 AML other m 2020-09-25T01:24:56.63
IV.FDMO.HHN. ML:1 8.47E-5 0.56 AML other m 2020-09-25T01:24:57.95
IV.CESI.HHE. ML:1.4 0.0001615 0.5 AML other m 2020-09-25T01:24:57.89
IV.CESI.HHN. ML:1.6 0.0002585 0.52 AML other m 2020-09-25T01:24:57.65
IV.GAVE.EHE. ML:1.6 0.000216 1.12 AML other m 2020-09-25T01:24:58.14
IV.MTRA.EHN. ML:1.4 0.000116 1.42 AML other m 2020-09-25T01:24:59.93
IV.MTRA.EHE. ML:1.4 0.0001335 0.92 AML other m 2020-09-25T01:24:59.78
IV.CSP1.EHE. ML:1.6 0.000221 0.28 AML other m 2020-09-25T01:24:59.55
IV.GAVE.EHN. ML:1.6 0.0002195 0.44 AML other m 2020-09-25T01:24:59.24
IV.LNSS.HHN. ML:1.5 0.000148 0.26 AML other m 2020-09-25T01:25:00.18
IV.LNSS.HHE. ML:1.6 0.0001865 1.22 AML other m 2020-09-25T01:25:00.71
IV.CSP1.EHN. ML:1.6 0.000208 0.44 AML other m 2020-09-25T01:25:00.91
IV.SMA1.EHN. ML:1.2 6.77E-5 0.68 AML other m 2020-09-25T01:25:01.25
IV.SMA1.EHE. ML:1.1 5.235E-5 0.5 AML other m 2020-09-25T01:25:03.07
IV.MOMA.HHE. ML:1.3 6.015E-5 0.48 AML other m 2020-09-25T01:25:05.13
IV.TERO.HHN. ML:1.2 4.545E-5 1 AML other m 2020-09-25T01:25:05.57
IV.MOMA.HHN. ML:1.4 7.48E-5 0.9 AML other m 2020-09-25T01:25:05.14
IV.TERO.HHE. ML:1.1 3.185E-5 0.32 AML other m 2020-09-25T01:25:05.85
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