Earthquake with magnitude of ML 0.9 on date 23-02-2020 and time 11:25:06 (Italy) in region 4 km W Rivello (PZ)

A magnitude ML 0.9 earthquake occured in region: 4 km W Rivello (PZ), on

  • 23-02-2020 10:25:06 (UTC)
  • 23-02-2020 11:25:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.1, 15.71 at 18 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
Rivello PZ 4 2767 2767
Lagonegro PZ 5 5584 8351
Torraca SA 7 1263 9614
Sapri SA 7 6770 16384
Nemoli PZ 8 1495 17879
Trecchina PZ 10 2316 20195
Casaletto Spartano SA 10 1420 21615
Tortorella SA 11 523 22138
Maratea PZ 11 5139 27277
Vibonati SA 11 3293 30570
Lauria PZ 12 12919 43489
Ispani SA 13 1026 44515
Casalbuono SA 14 1194 45709
Morigerati SA 14 665 46374
Santa Marina SA 15 3243 49617
Caselle in Pittari SA 17 1956 51573
Tortora CS 20 6187 57760

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km S of Potenza (67122 inhabitants)
84 Km SE of Battipaglia (50786 inhabitants)
98 Km SW of Matera (60436 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 0.9 2020-02-23
10:25:06
40.1 15.71 18 2020-02-23
10:32:18
Sala Sismica INGV-Roma 76747131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-23 10:25:06 ± 0.14
Latitude 40.10 ± 0.00
Longitude 15.71 ± 0.00
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76747131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 439
Semi-minor axis of confidence ellipse (meter) 96
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 342
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29588
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 76747131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-23 10:32:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TDS.HHZ. 2020-02-23T10:25:22.27 3.0 undecidable manual Sn 0
IV.SALB.HHZ. 2020-02-23T10:25:19.71 3.0 undecidable manual P 0
IV.PIPA.HHZ. 2020-02-23T10:25:17.60 3.0 undecidable manual P -0.07 0
IV.SCHR.EHE. 2020-02-23T10:25:17.83 0.6 undecidable manual S 69 0.2959 108 -0.17 48
IV.MCEL.HNN. 2020-02-23T10:25:16.60 0.6 undecidable manual S 16 0.2383 113 0.18 48
IV.SIRI.HHZ. 2020-02-23T10:25:14.01 0.3 undecidable manual S 54 0.1457 130 -0.05 76
MN.CUC.HHZ. 2020-02-23T10:25:13.68 0.3 undecidable manual S 143 0.1286 134 0.01 76
IV.MGR.HHZ. 2020-02-23T10:25:13.59 0.6 undecidable manual S 289 0.1295 134 -0.11 50
IV.SCHR.EHE. 2020-02-23T10:25:13.07 0.3 undecidable manual P 69 0.2959 108 -0.07 73
IV.MCEL.HNN. 2020-02-23T10:25:12.16 0.3 undecidable manual P 16 0.2383 113 -0.07 74
IV.SIRI.HHZ. 2020-02-23T10:25:10.92 0.1 positive manual P 54 0.1457 130 0.06 100
MN.CUC.HHZ. 2020-02-23T10:25:10.94 1.0 positive manual P 143 0.1286 134 0.3 24
IV.MGR.HHZ. 2020-02-23T10:25:10.72 0.6 undecidable manual P 289 0.1295 134 0.06 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MGR.HHE. ML:0.7 3.6401325E-5 0.2176 AML other m 2020-02-23T10:25:13.68
IV.MGR.HHN. ML:0.3 1.519329E-5 0.1792 AML other m 2020-02-23T10:25:14.27
IV.MGR.HNE. ML:1.3 0.00013444175 0.768 AML other m 2020-02-23T10:25:26.42
IV.MGR.HNN. ML:1.5 0.0002360142 0.7808 AML other m 2020-02-23T10:25:17.10
IV.SIRI.HHE. ML:1 6.9845885E-5 0.1984 AML other m 2020-02-23T10:25:15.57
IV.SIRI.HHN. ML:0.9 5.495159E-5 0.2816 AML other m 2020-02-23T10:25:15.62
IV.SIRI.HNE. ML:1 7.158001E-5 0.1792 AML other m 2020-02-23T10:25:15.48
IV.SIRI.HNN. ML:0.9 5.027089E-5 0.3008 AML other m 2020-02-23T10:25:15.48
IV.PIPA.HHE. ML:1.1 1.233809425E-5 0.4224 AML other m 2020-02-23T10:25:44.07
IV.PIPA.HHN. ML:1.1 1.1206375E-5 0.0576 AML other m 2020-02-23T10:25:37.84
IV.PIPA.HNE. ML:2.1 9.505389E-5 0.6208 AML other m 2020-02-23T10:25:45.52
IV.PIPA.HNN. ML:2.3 0.000155249055 0.704 AML other m 2020-02-23T10:25:25.58
IV.SALB.HHE. ML:0.9 1.5699605E-5 1.4016 AML other m 2020-02-23T10:25:44.36
IV.SALB.HHN. ML:0.9 1.4011331E-5 1.2416 AML other m 2020-02-23T10:25:46.93
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