Earthquake with magnitude of ML 0.9 on date 28-02-2021 and time 01:21:38 (Italy) in region 2 km SE Sarconi (PZ)

A magnitude ML 0.9 earthquake occured in region: 2 km SE Sarconi (PZ), on

  • 28-02-2021 00:21:38 (UTC)
  • 28-02-2021 01:21:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.24, 15.91 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
Sarconi PZ 2 1404 1404
Moliterno PZ 4 4062 5466
Grumento Nova PZ 6 1700 7166
Spinoso PZ 6 1462 8628
Montemurro PZ 10 1235 9863
Castelsaraceno PZ 11 1384 11247
Viggiano PZ 12 3329 14576
San Martino d'Agri PZ 12 801 15377
Tramutola PZ 14 3089 18466
San Chirico Raparo PZ 15 1084 19550
Armento PZ 16 631 20181
Marsicovetere PZ 17 5546 25727
Lagonegro PZ 18 5584 31311
Montesano sulla Marcellana SA 18 6704 38015
Latronico PZ 18 4556 42571
Carbone PZ 19 638 43209
Casalbuono SA 19 1194 44403

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km S of Potenza (67122 inhabitants)
76 Km SW of Matera (60436 inhabitants)
86 Km SW of Altamura (70396 inhabitants)
89 Km E of Battipaglia (50786 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 0.9 2021-02-28
00:21:38
40.24 15.91 10 2021-02-28
01:12:22
Sala Sismica INGV-Roma 87554841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-28 00:21:38 ± 0.06
Latitude 40.24 ± 0.01
Longitude 15.91 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87554841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 220
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28868
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 87554841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-28 01:12:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MGR.HHZ. 2021-02-28T00:21:49.66 0.3 undecidable manual S 250 0.2887 50 0 72
IV.SLCN.HHZ. 2021-02-28T00:21:44.65 3.0 undecidable manual P 0.05 0
MN.CUC.HHZ. 2021-02-28T00:21:44.33 0.6 negative manual P 197 0.2527 50 0.07 48
IV.MCEL.HHZ. 2021-02-28T00:21:44.08 0.1 undecidable manual S 317 0.1214 126 -0.08 98
IV.MGR.HHZ. 2021-02-28T00:21:44.80 0.1 undecidable manual P 250 0.2887 50 -0.09 94
IV.SCHR.EHZ. 2021-02-28T00:21:44.43 0.3 undecidable manual S 106 0.1322 124 -0.08 73
IV.MCEL.HHZ. 2021-02-28T00:21:41.88 0.3 positive manual P 317 0.1214 126 0.17 72
IV.SCHR.EHZ. 2021-02-28T00:21:41.96 0.1 undecidable manual P 106 0.1322 124 0.04 98
IV.SIRI.HHZ. 2021-02-28T00:21:40.80 0.1 positive manual P 211 0.063 145 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SIRI.HHN. ML:1.2 0.00025 0.22 AML other m 2021-02-28T00:21:44.20
IV.SIRI.HNN. ML:1.2 0.0002435 0.2 AML other m 2021-02-28T00:21:44.21
IV.SCHR.EHE. ML:0.8 5.74E-5 0.24 AML other m 2021-02-28T00:21:45.56
IV.SIRI.HHE. ML:1 0.00015555 1.74 AML other m 2021-02-28T00:21:45.89
IV.SIRI.HNE. ML:1 0.00015345 1.72 AML other m 2021-02-28T00:21:45.89
IV.MCEL.HHN. ML:0.9 7.44E-5 0.22 AML other m 2021-02-28T00:21:46.06
IV.SCHR.EHN. ML:0.6 3.65E-5 0.24 AML other m 2021-02-28T00:21:46.26
IV.MCEL.HHE. ML:1 9.57E-5 1.34 AML other m 2021-02-28T00:21:46.27
MN.CUC.HHN. ML:0.6 1.83E-5 1.58 AML other m 2021-02-28T00:21:47.05
MN.CUC.HHE. ML:0.7 2.29E-5 0.42 AML other m 2021-02-28T00:21:50.06
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