Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 28-03-2021 and time 16:14:46 (Italy) in region 4 km NW Rivello (PZ)

A magnitude ML 1.0 earthquake occured in region: 4 km NW Rivello (PZ), on

  • 28-03-2021 14:14:46 (UTC)
  • 28-03-2021 16:14:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.0980, 15.7160 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Rivello PZ 4 2767 2767
Lagonegro PZ 5 5584 8351
Torraca SA 7 1263 9614
Sapri SA 8 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 12 3293 30570
Lauria PZ 12 12919 43489
Ispani SA 13 1026 44515
Casalbuono SA 13 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
Montesano sulla Marcellana SA 20 6704 64464

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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.0 2021-03-28
14:14:46		 40.0977 15.7155 10 2021-07-12
16:55:12		 Bollettino Sismico Italiano INGV 90482031
Reviewed
Rev100 		ML 1.1 2021-03-28
14:14:45		 40.0673 15.7212 10 2021-03-28
14:29:14		 Sala Sismica INGV-Roma 88556681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-28 14:14:46 ± 0.15
Latitude 40.0977 ± 0.0099
Longitude 15.7155 ± 0.0082
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90482031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1140
Semi-minor axis of confidence ellipse (meter) 435
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 176
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38401
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 90482031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-25 14:07:52

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 88556681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-28 14:29:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2021-03-28T14:15:41.00 3.0 undecidable manual Sg 2.06 0
IV.VBKN.HHZ. 2021-03-28T14:15:31.48 3.0 undecidable manual S 1.04 0
IV.ECTS.HHZ. 2021-03-28T14:15:21.10 3.0 undecidable manual Pg 2.46 0
IV.PAOL.HHZ. 2021-03-28T14:15:05.80 3.0 undecidable manual P -4.44 0
IV.SELL.HHZ. 2021-03-28T14:15:01.70 3.0 undecidable manual P -3.26 0
IV.CMPR.HHZ. 2021-03-28T14:15:00.82 0.6 undecidable manual S 305 42.624 50 0.55 43
IV.SCHR.EHZ. 2021-03-28T14:14:57.17 0.6 undecidable manual S 70 32.5452 50 -0.4 45
IV.MCEL.HHZ. 2021-03-28T14:14:56.15 0.6 undecidable manual S 16 26.2515 50 0.26 47
IV.GRIS.HNE. 2021-03-28T14:14:54.47 0.3 undecidable manual P 164 41.3253 50 0.34 67
IV.CMPR.HHZ. 2021-03-28T14:14:54.14 0.3 undecidable manual P 305 42.624 50 -0.19 70
IV.SIRI.HHZ. 2021-03-28T14:14:53.10 0.6 undecidable manual S 54 15.9729 123 0.33 47
IV.MGR.HHZ. 2021-03-28T14:14:52.05 0.6 undecidable manual S 288 14.4744 125 -0.29 48
IV.SCHR.EHZ. 2021-03-28T14:14:52.41 0.3 undecidable manual P 70 32.5452 50 -0.37 68
IV.MCEL.HHZ. 2021-03-28T14:14:51.70 0.1 undecidable manual P 16 26.2515 50 -0.1 97
IV.SIRI.HHZ. 2021-03-28T14:14:50.13 0.1 undecidable manual P 54 15.9729 123 0.13 98
IV.MGR.HHZ. 2021-03-28T14:14:49.69 0.1 undecidable manual P 288 14.4744 125 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MGR.HNE. ML:1.3 0.00018564725 0.2304 AML other m 2021-03-28T14:14:52.28
IV.MGR.HHE. ML:1.3 0.0001785 0.22 AML other m 2021-03-28T14:14:52.17
IV.MGR.HHN. ML:1.0 0.0001125 0.28 AML other m 2021-03-28T14:14:53.05
IV.MGR.HNN. ML:1.3 0.0001943008 0.4416 AML other m 2021-03-28T14:14:53.24
IV.SIRI.HNN. ML:0.9 0.00006658109000000001 0.1984 AML other m 2021-03-28T14:14:54.35
IV.SIRI.HHN. ML:0.9 0.00006785907 0.1984 AML other m 2021-03-28T14:14:54.25
IV.SIRI.HHE. ML:1.0 0.0001013 0.24 AML other m 2021-03-28T14:14:55.55
IV.SIRI.HNE. ML:1.0 0.00010199756 0.2368 AML other m 2021-03-28T14:14:55.55
IV.MCEL.HHE. ML:1.0 0.000050299999999999996 0.2 AML other m 2021-03-28T14:14:56.30
IV.MCEL.HNN. ML:1.1 0.00007048691499999999 0.256 AML other m 2021-03-28T14:14:56.46
IV.MCEL.HHN. ML:0.6 0.000027109265 0.1984 AML other m 2021-03-28T14:14:56.67
IV.MCEL.HNE. ML:1.5 0.00017554608500000002 0.3584 AML other m 2021-03-28T14:14:57.68
IV.SLCN.HHN. ML:0.8 0.000031100000000000004 0.08 AML other m 2021-03-28T14:15:01.03
IV.CMPR.HHE. ML:0.7 0.000013769 1.7632 AML other m 2021-03-28T14:15:02.93
IV.CMPR.HHN. ML:0.5 0.0000087439615 0.0768 AML other m 2021-03-28T14:15:02.27
IV.SELL.HHE. ML:1.3 0.00001162615 0.8608 AML other m 2021-03-28T14:15:10.41
IV.SELL.HHN. ML:1.0 0.0000066631135 1.2384 AML other m 2021-03-28T14:15:20.24
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download