Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 25-10-2020 and time 18:14:11 (UTC) in region 2 km E Maschito (PZ)

A magnitude ML 1.4 earthquake occured in region: 2 km E Maschito (PZ), on

  • 25-10-2020 18:14:11 (UTC)
  • 25-10-2020 19:14:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.9, 15.85 at 5 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
Maschito PZ 2 1670 1670
Forenza PZ 5 2122 3792
Venosa PZ 7 11863 15655
Ginestra PZ 10 747 16402
Ripacandida PZ 11 1744 18146
Palazzo San Gervasio PZ 11 4914 23060
Acerenza PZ 14 2402 25462
Banzi PZ 14 1361 26823
Rionero in Vulture PZ 15 13230 40053
Barile PZ 16 2785 42838
Filiano PZ 16 2926 45764
Genzano di Lucania PZ 16 5750 51514
Montemilone PZ 17 1617 53131
Lavello PZ 17 13626 66757
Atella PZ 17 3827 70584
Rapolla PZ 17 4432 75016
Pietragalla PZ 17 4160 79176
Oppido Lucano PZ 19 3813 82989
Melfi PZ 20 17767 100756

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of Potenza (67122 inhabitants)
41 Km S of Cerignola (58396 inhabitants)
52 Km SW of Andria (100440 inhabitants)
58 Km SW of Barletta (94814 inhabitants)
60 Km W of Altamura (70396 inhabitants)
63 Km SW of Trani (56217 inhabitants)
66 Km SW of Bisceglie (55422 inhabitants)
67 Km SE of Foggia (151991 inhabitants)
68 Km W of Matera (60436 inhabitants)
71 Km W of Molfetta (59874 inhabitants)
74 Km W of Bitonto (55540 inhabitants)
80 Km E of Battipaglia (50786 inhabitants)
81 Km S of Manfredonia (57279 inhabitants)
89 Km W of Bari (326344 inhabitants)
89 Km E of Avellino (54857 inhabitants)
93 Km E of Benevento (60091 inhabitants)
95 Km E of Salerno (135261 inhabitants)
96 Km SE of San Severo (53905 inhabitants)
99 Km E of Cava de' Tirreni (53659 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 2020-10-25
18:14:11		 40.9 15.85 5 2020-10-25
18:19:48		 Sala Sismica INGV-Roma 84124391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-25 18:14:11 ± 0.14
Latitude 40.90 ± 0.01
Longitude 15.85 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84124391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 909
Semi-minor axis of confidence ellipse (meter) 502
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.9227
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 84124391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-25 18:19:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSAG.HHZ. 2020-10-25T18:14:40.00 0.3 undecidable manual S 3 0.8085 50 0.65 59
IV.PTRJ.HHZ. 2020-10-25T18:14:33.89 3.0 undecidable manual P 0.77 0
IV.NOCI.HHZ. 2020-10-25T18:14:29.68 0.3 negative manual P 97 0.9227 50 0.13 66
IV.MSAG.HHZ. 2020-10-25T18:14:28.34 1.0 undecidable manual P 3 0.8085 50 0.75 19
IV.AMUR.HHZ. 2020-10-25T18:14:23.28 0.1 undecidable manual P 89 0.5675 50 -0.19 94
IV.MIGL.HHZ. 2020-10-25T18:14:22.18 0.6 positive manual P 124 0.5369 50 -0.76 40
IV.MRVN.HHZ. 2020-10-25T18:14:22.69 0.6 undecidable manual S 59 0.3022 98 -0.6 45
IV.VULT.HHZ. 2020-10-25T18:14:18.66 0.6 undecidable manual S 286 0.1862 103 -0.22 51
IV.MRVN.HHZ. 2020-10-25T18:14:17.80 0.1 positive manual P 59 0.3022 98 -0.52 93
IX.RDM3.HNE.02 2020-10-25T18:14:17.22 0.1 undecidable manual P 263 0.241 100 0.24 100
IV.ACER.HHZ. 2020-10-25T18:14:17.52 0.6 undecidable manual S 150 0.1358 107 0.52 48
IV.VULT.HHZ. 2020-10-25T18:14:15.49 0.1 undecidable manual P 286 0.1862 103 -0.28 100
IV.PALZ.HHZ. 2020-10-25T18:14:15.85 0.3 undecidable manual S 64 0.0899 115 0.49 73
IV.PALZ.HHZ. 2020-10-25T18:14:14.23 1.0 undecidable manual P 64 0.0899 115 0.48 24
IV.ACER.HHZ. 2020-10-25T18:14:14.76 0.3 positive manual P 150 0.1358 107 0.07 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PALZ.HHN. ML:1.3 0.000343 0.36 AML other m 2020-10-25T18:14:17.04
IV.PALZ.HHE. ML:1.4 0.000426 0.36 AML other m 2020-10-25T18:14:17.07
IV.ACER.HHE. ML:1.4 0.000313 0.86 AML other m 2020-10-25T18:14:17.45
IV.ACER.HNE. ML:1.4 0.000303 0.16 AML other m 2020-10-25T18:14:17.96
IV.ACER.HHN. ML:1.5 0.0003885 0.5 AML other m 2020-10-25T18:14:17.99
IV.ACER.HNN. ML:1.6 0.000438 0.5 AML other m 2020-10-25T18:14:17.99
IV.VULT.HHN. ML:1.5 0.000233 0.18 AML other m 2020-10-25T18:14:19.64
IV.VULT.HHE. ML:1.4 0.00019 0.5 AML other m 2020-10-25T18:14:21.81
IV.MRVN.HHN. ML:1.2 6.31E-5 0.16 AML other m 2020-10-25T18:14:23.33
IV.MRVN.HHE. ML:1.1 5.745E-5 1.52 AML other m 2020-10-25T18:14:23.17
IV.NOCI.HHN. ML:1.8 5.655E-5 0.76 AML other m 2020-10-25T18:14:44.16
IV.NOCI.HHE. ML:1.7 4.565E-5 0.78 AML other m 2020-10-25T18:14:46.49
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