Earthquake with magnitude of ML 1.8 on date 16-01-2021 and time 18:51:52 (Italy) in region 1 km SW Francavilla in Sinni (PZ)

A magnitude ML 1.8 earthquake occured in region: 1 km SW Francavilla in Sinni (PZ), on

  • 16-01-2021 17:51:52 (UTC)
  • 16-01-2021 18:51:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.08, 16.2 at 25 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
Francavilla in Sinni PZ 1 4215 4215
Fardella PZ 5 627 4842
Chiaromonte PZ 6 1965 6807
Teana PZ 7 613 7420
San Severino Lucano PZ 8 1563 8983
Episcopia PZ 9 1434 10417
Calvera PZ 9 387 10804
San Costantino Albanese PZ 10 729 11533
Senise PZ 11 7115 18648
Noepoli PZ 11 878 19526
Carbone PZ 12 638 20164
San Paolo Albanese PZ 12 294 20458
Castronuovo di Sant'Andrea PZ 13 1067 21525
Cersosimo PZ 13 656 22181
Terranova di Pollino PZ 14 1208 23389
Viggianello PZ 15 3025 26414
Roccanova PZ 15 1543 27957
Latronico PZ 16 4556 32513
San Giorgio Lucano MT 17 1217 33730
San Chirico Raparo PZ 17 1084 34814
Rotonda PZ 20 3494 38308
Alessandria del Carretto CS 20 462 38770

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km SE of Potenza (67122 inhabitants)
74 Km SW of Matera (60436 inhabitants)
87 Km N of Cosenza (67546 inhabitants)
89 Km SW of Altamura (70396 inhabitants)
98 Km W of Taranto (201100 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 1.8 2021-01-16
17:51:52
40.08 16.2 25 2021-01-16
19:26:53
Sala Sismica INGV-Roma 86308371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 17:51:52 ± 0.2
Latitude 40.08 ± 0.01
Longitude 16.20 ± 0.01
Depth (km) 25 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86308371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 780
Semi-minor axis of confidence ellipse (meter) 257
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.19245
Epicentral distance of station farthest from the epicenter (degree) 0.57916
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 86308371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 19:26:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CET2.HHZ. 2021-01-16T17:52:12.94 0.6 undecidable manual S 199 0.5792 105 0.49 44
IV.PTRP.HHE. 2021-01-16T17:52:09.44 1.0 undecidable manual S 347 0.4569 110 0.45 23
IV.GRIS.EHE. 2021-01-16T17:52:08.15 0.6 undecidable manual S 219 0.429 111 -0.07 50
IV.MCEL.HHZ. 2021-01-16T17:52:07.18 0.3 undecidable manual S 309 0.393 114 -0.04 75
MN.CUC.HHE. 2021-01-16T17:52:05.02 0.3 undecidable manual S 254 0.3067 121 0.08 77
IV.CET2.HHZ. 2021-01-16T17:52:04.24 0.1 undecidable manual P 199 0.5792 105 0.3 93
IV.SLCN.HHE. 2021-01-16T17:52:03.29 0.1 undecidable manual P 306 0.5351 107 0.09 98
IV.MMN.HHE. 2021-01-16T17:52:03.00 0.6 undecidable manual S 221 0.2455 127 -0.45 48
IV.SIRI.HHZ. 2021-01-16T17:52:03.99 1.0 undecidable manual S 293 0.2761 124 -0.18 25
IV.SALB.HHZ. 2021-01-16T17:52:02.37 0.3 undecidable manual S 151 0.2284 130 -0.67 68
IV.PTRP.HHE. 2021-01-16T17:52:02.00 0.1 undecidable manual P 347 0.4569 110 0.06 100
IV.ORI.HHZ. 2021-01-16T17:52:02.91 0.6 undecidable manual S 98 0.1925 135 0.65 44
IV.GRIS.EHE. 2021-01-16T17:52:02.06 0.1 undecidable manual P 219 0.429 111 0.57 90
IV.TDS.HHE. 2021-01-16T17:52:01.24 0.1 undecidable manual P 166 0.429 111 -0.26 96
IV.MCEL.HHZ. 2021-01-16T17:52:00.58 0.1 undecidable manual P 309 0.393 114 -0.34 94
IV.CRAC.EHE. 2021-01-16T17:52:00.48 0.3 undecidable manual P 30 0.3525 116 0.18 74
MN.CUC.HHE. 2021-01-16T17:51:59.39 0.1 undecidable manual P 254 0.3067 121 -0.21 99
IV.MMN.HHE. 2021-01-16T17:51:59.13 0.1 undecidable manual P 221 0.2455 127 0.39 97
IV.ORI.HHZ. 2021-01-16T17:51:58.34 0.1 undecidable manual P 98 0.1925 135 0.29 100
IV.SIRI.HHZ. 2021-01-16T17:51:58.60 0.1 undecidable manual P 293 0.2761 124 -0.55 91
IV.SALB.HHZ. 2021-01-16T17:51:57.99 0.1 undecidable manual P 151 0.2284 130 -0.51 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SALB.HHN. ML:1.7 0.0002261826 0.1024 AML other m 2021-01-16T17:52:03.05
IV.SALB.HHE. ML:1.8 0.0002965 0.12 AML other m 2021-01-16T17:52:03.37
IV.SIRI.HHN. ML:1.7 0.0001703663 0.2176 AML other m 2021-01-16T17:52:06.17
IV.ORI.HHE. ML:2 0.0004345 1.52 AML other m 2021-01-16T17:52:05.05
IV.SIRI.HNE. ML:1.7 0.00016580205 0.1664 AML other m 2021-01-16T17:52:06.06
IV.SIRI.HHE. ML:1.7 0.00017497625 0.1792 AML other m 2021-01-16T17:52:06.06
IV.SIRI.HNN. ML:1.7 0.0001665558 0.2176 AML other m 2021-01-16T17:52:06.17
IV.ORI.HHN. ML:1.9 0.00037 0.34 AML other m 2021-01-16T17:52:07.52
IV.MCEL.HHN. ML:2 0.000266 0.34 AML other m 2021-01-16T17:52:07.44
IV.MCEL.HNN. ML:2.5 0.0008935 0.62 AML other m 2021-01-16T17:52:08.03
IV.MCEL.HHE. ML:1.9 0.0001955 0.16 AML other m 2021-01-16T17:52:08.29
IV.MCEL.HNE. ML:2.2 0.0004565 0.28 AML other m 2021-01-16T17:52:08.93
IV.CET2.HHE. ML:1.6 6.6253025E-5 0.2176 AML other m 2021-01-16T17:52:13.10
IV.CET2.HHN. ML:1.8 0.000106997155 1.1008 AML other m 2021-01-16T17:52:31.78
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