Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 23-12-2021 and time 04:48:45 (UTC) in region 3 km SE Sapri (SA)

A magnitude ML 2.4 earthquake occured in region: 3 km SE Sapri (SA), on

  • 23-12-2021 04:48:45 (UTC)
  • 23-12-2021 05:48:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.0550, 15.6480 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sapri SA 3 6770 6770
Torraca SA 6 1263 8033
Vibonati SA 8 3293 11326
Ispani SA 8 1026 12352
Maratea PZ 9 5139 17491
Rivello PZ 10 2767 20258
Tortorella SA 10 523 20781
Santa Marina SA 11 3243 24024
Casaletto Spartano SA 11 1420 25444
Trecchina PZ 12 2316 27760
Morigerati SA 12 665 28425
Lagonegro PZ 13 5584 34009
Nemoli PZ 13 1495 35504
Caselle in Pittari SA 16 1956 37460
Lauria PZ 16 12919 50379
San Giovanni a Piro SA 17 3780 54159
Torre Orsaia SA 17 2118 56277
Tortora CS 18 6187 62464
Casalbuono SA 18 1194 63658
Roccagloriosa SA 19 1722 65380

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km S of Potenza (67122 inhabitants)
83 Km SE of Battipaglia (50786 inhabitants)
99 Km NW of Cosenza (67546 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 2.4 2021-12-23
04:48:45		 40.055 15.6475 10 2022-03-30
13:04:36		 Bollettino Sismico Italiano INGV 100832791
Reviewed
Rev100 		ML 2.4 2021-12-23
04:48:45		 40.0532 15.6527 10 2021-12-23
04:58:31		 Sala Sismica INGV-Roma 98840371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-23 04:48:45 ± 0.06
Latitude 40.0550 ± 0.0027
Longitude 15.6475 ± 0.0047
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100832791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 347
Semi-minor axis of confidence ellipse (meter) 200
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.10972
Epicentral distance of station farthest from the epicenter (degree) 0.93080
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 100832791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-10 10:46:49

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 98840371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-23 04:58:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2021-12-23T04:49:15.71 0.3 undecidable manual S 145 103.3188 50 -0.29 60
IV.MIGL.HHZ. 2021-12-23T04:49:12.76 0.3 undecidable manual S 47 90.6426 50 0.13 64
IV.SGO.HHZ. 2021-12-23T04:49:05.35 0.3 undecidable manual S 333 62.9925 50 0.09 68
IV.CET2.HHZ. 2021-12-23T04:49:05.51 0.6 undecidable manual S 156 63.9915 50 0 46
IV.CDRU.HHZ. 2021-12-23T04:49:03.33 0.3 undecidable manual S 329 56.2992 50 -0.13 68
IV.CELI.HHZ. 2021-12-23T04:49:03.54 0.1 undecidable manual P 134 103.119 50 0.37 79
IV.SPS2.HHZ. 2021-12-23T04:49:03.48 0.3 undecidable manual P 145 103.3188 50 0.28 60
IV.CAR1.HHZ. 2021-12-23T04:49:03.11 0.3 undecidable manual P 151 101.121 50 0.24 61
IV.MIGL.HHZ. 2021-12-23T04:49:01.17 0.3 undecidable manual P 47 90.6426 50 -0.08 64
IX.SRN3.HHZ.02 2021-12-23T04:49:01.71 0.6 undecidable manual S 342 50.4162 50 -0.19 45
IX.MRN3.HNE.01 2021-12-23T04:48:59.44 0.6 undecidable manual S 10 41.7249 50 -0.13 46
IV.GRIS.EHZ. 2021-12-23T04:48:59.22 0.3 undecidable manual S 153 39.0276 50 0.37 67
IV.CMPR.HNE. 2021-12-23T04:48:59.33 0.3 undecidable manual S 315 41.3253 50 -0.13 70
IX.VGG3.HNZ.01 2021-12-23T04:48:58.91 0.3 undecidable manual S 34 37.8288 50 0.37 67
IV.SCHR.EHZ. 2021-12-23T04:48:58.78 0.6 undecidable manual S 66 39.7269 50 -0.25 45
IX.TEGI.HNN.01 2021-12-23T04:48:58.19 0.6 undecidable manual S 345 37.2294 50 -0.19 46
IV.SLCN.HHZ. 2021-12-23T04:48:58.67 0.3 undecidable manual S 358 37.1295 50 0.31 68
IV.MCEL.HHZ. 2021-12-23T04:48:57.04 0.3 undecidable manual S 24 32.6451 50 -0.12 71
IV.MMN.HHZ. 2021-12-23T04:48:57.74 0.3 undecidable manual S 122 34.3434 50 0.13 71
IV.CET2.HHZ. 2021-12-23T04:48:56.97 0.1 undecidable manual P 156 63.9915 50 -0.17 88
IV.SGO.HHZ. 2021-12-23T04:48:56.78 0.3 undecidable manual P 333 62.9925 50 -0.21 66
IX.SRN3.HHZ.02 2021-12-23T04:48:55.00 0.3 undecidable manual P 342 50.4162 50 -0.05 70
IV.MTSN.HHZ. 2021-12-23T04:48:55.41 0.3 undecidable manual S 21 25.0527 111 0.38 68
IV.CDRU.HHZ. 2021-12-23T04:48:55.51 0.3 undecidable manual P 329 56.2992 50 -0.44 63
IX.STN3.HNZ.01 2021-12-23T04:48:55.96 0.6 undecidable manual P 0 52.7028 50 0.56 41
IV.BULG.HHZ. 2021-12-23T04:48:54.87 0.6 undecidable manual S 277 23.0547 113 0.47 45
IX.MRN3.HNE.01 2021-12-23T04:48:54.04 0.3 undecidable manual P 10 41.7249 50 0.33 67
IV.SIRI.HHZ. 2021-12-23T04:48:54.35 0.3 undecidable manual S 53 23.3544 113 -0.15 72
IV.SLCN.HHZ. 2021-12-23T04:48:53.19 1.0 undecidable manual P 358 37.1295 50 0.18 23
IT.SLC1.HGN. 2021-12-23T04:48:53.54 0.6 undecidable manual P 353 37.9287 50 0.41 44
IV.CMPR.HNE. 2021-12-23T04:48:53.56 0.3 undecidable manual P 315 41.3253 50 -0.08 70
IX.VGG3.HNZ.01 2021-12-23T04:48:53.55 0.3 undecidable manual P 34 37.8288 50 0.44 66
IV.SCHR.EHZ. 2021-12-23T04:48:53.03 0.1 positive manual P 66 39.7269 50 -0.37 89
IV.MCEL.HHZ. 2021-12-23T04:48:52.10 0.1 undecidable manual P 24 32.6451 50 -0.22 93
IV.MMN.HHZ. 2021-12-23T04:48:52.32 0.3 undecidable manual P 122 34.3434 50 -0.26 69
IV.GRIS.EHZ. 2021-12-23T04:48:52.86 0.1 negative manual P 153 39.0276 50 -0.44 87
IX.TEGI.HNN.01 2021-12-23T04:48:52.98 0.3 undecidable manual P 345 37.2294 50 -0.04 71
IV.SIRI.HHZ. 2021-12-23T04:48:50.72 0.1 positive manual P 53 23.3544 113 -0.06 97
IV.BULG.HHZ. 2021-12-23T04:48:50.90 0.1 positive manual P 277 23.0547 113 0.18 95
IV.MGR.HNZ. 2021-12-23T04:48:50.78 0.3 undecidable manual S 319 12.1767 129 -0.34 70
IV.MTSN.HHZ. 2021-12-23T04:48:50.98 0.1 undecidable manual P 21 25.0527 111 -0.11 96
IV.MGR.HNZ. 2021-12-23T04:48:48.85 0.1 undecidable manual P 319 12.1767 129 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MGR.HNE. ML:3.1 0.013371295 0.1696 AML other m 2021-12-23T04:48:51.01
IV.MGR.HHE. ML:3.1 0.01585 1.84 AML other m 2021-12-23T04:48:50.01
IV.MGR.HHN. ML:2.9 0.009939553 0.1376 AML other m 2021-12-23T04:48:51.01
IV.MGR.HNN. ML:3.0 0.011869995 0.1376 AML other m 2021-12-23T04:48:51.02
IV.BULG.HHN. ML:2.5 0.0021100000000000003 1.64 AML other m 2021-12-23T04:48:54.98
IV.BULG.HNN. ML:2.5 0.002042297 0.3616 AML other m 2021-12-23T04:48:54.98
IV.BULG.HHE. ML:2.4 0.0016600000000000002 0.3 AML other m 2021-12-23T04:48:55.64
IV.BULG.HNE. ML:2.4 0.001615 0.3 AML other m 2021-12-23T04:48:55.64
IV.MTSN.HNE. ML:2.4 0.0016899999999999999 0.24 AML other m 2021-12-23T04:48:56.17
IV.SIRI.HHE. ML:2.6 0.0026053730000000002 0.2816 AML other m 2021-12-23T04:48:56.78
IV.SIRI.HHN. ML:2.8 0.0041178925 0.2784 AML other m 2021-12-23T04:48:56.63
IV.SIRI.HNN. ML:2.8 0.0039311335000000005 0.2816 AML other m 2021-12-23T04:48:56.78
IV.SIRI.HNE. ML:2.6 0.0026399999999999996 0.28 AML other m 2021-12-23T04:48:56.79
IV.MTSN.HHE. ML:2.5 0.0017309860000000001 0.2176 AML other m 2021-12-23T04:48:56.17
IV.MTSN.HNN. ML:2.6 0.0021768625 0.2208 AML other m 2021-12-23T04:48:56.88
IV.MTSN.HHN. ML:2.6 0.0022991565 0.2176 AML other m 2021-12-23T04:48:56.89
IV.MCEL.HHE. ML:2.4 0.001104142 0.1792 AML other m 2021-12-23T04:48:57.54
IV.MCEL.HNE. ML:2.9 0.00344355 0.3584 AML other m 2021-12-23T04:48:57.98
IV.MCEL.HNN. ML:2.8 0.002463051 0.3232 AML other m 2021-12-23T04:48:58.27
IV.MMN.HHE. ML:2.4 0.0010004999999999999 0.28 AML other m 2021-12-23T04:48:58.18
IV.MMN.HHN. ML:2.5 0.0014218540000000002 0.1984 AML other m 2021-12-23T04:48:58.39
IV.SCHR.EHN. ML:2.1 0.0004645 0.28 AML other m 2021-12-23T04:48:59.29
IV.SCHR.EHE. ML:2.2 0.000507 0.26 AML other m 2021-12-23T04:48:59.78
IV.MCEL.HHN. ML:2.3 0.00085442335 0.3616 AML other m 2021-12-23T04:48:59.55
IV.GRIS.EHE. ML:2.2 0.0004997813 0.1792 AML other m 2021-12-23T04:48:59.64
IV.GRIS.HNE. ML:2.1 0.00047667785 0.1792 AML other m 2021-12-23T04:48:59.64
IV.GRIS.HNN. ML:2.3 0.0006612374999999999 0.208 AML other m 2021-12-23T04:49:00.82
IV.GRIS.EHN. ML:2.2 0.00063356685 0.24 AML other m 2021-12-23T04:49:00.82
IV.SLCN.HHE. ML:2.6 0.0016649759999999999 0.4 AML other m 2021-12-23T04:49:03.25
IV.SLCN.HNE. ML:2.6 0.001516457 0.4 AML other m 2021-12-23T04:49:03.25
IV.SLCN.HHN. ML:2.5 0.0011240000000000002 0.24 AML other m 2021-12-23T04:49:02.80
IV.SLCN.HNN. ML:2.5 0.001127 0.24 AML other m 2021-12-23T04:49:02.80
IV.CDRU.HHE. ML:2.5 0.0007934999999999999 0.16 AML other m 2021-12-23T04:49:03.77
IV.CDRU.HHN. ML:2.1 0.000312 0.16 AML other m 2021-12-23T04:49:03.78
IX.SRN3.HHN.02 ML:2.5 0.0008274999999999999 0.32 AML other m 2021-12-23T04:49:05.44
IX.SRN3.HNN.01 ML:2.5 0.0008055000000000001 0.34 AML other m 2021-12-23T04:49:05.61
IX.SRN3.HHE.02 ML:2.4 0.0007181647 0.224 AML other m 2021-12-23T04:49:06.86
IX.SRN3.HNE.01 ML:2.5 0.00082857775 0.224 AML other m 2021-12-23T04:49:06.86
IV.SGO.HHN. ML:2.2 0.00026826709999999996 0.1376 AML other m 2021-12-23T04:49:08.52
IV.CET2.HHN. ML:2.5 0.0005663076500000001 0.2016 AML other m 2021-12-23T04:49:07.93
IV.CET2.HHE. ML:2.2 0.00031322625000000003 0.32 AML other m 2021-12-23T04:49:11.25
IV.SGO.HHE. ML:2.0 0.000186 0.34 AML other m 2021-12-23T04:49:13.75
IV.CAR1.HHN. ML:2.4 0.00023023359999999998 0.4 AML other m 2021-12-23T04:49:21.09
IV.CAR1.HHE. ML:2.4 0.000251 0.36 AML other m 2021-12-23T04:49:20.47
IV.SPS2.HHN. ML:1.9 0.00008010000000000001 0.24 AML other m 2021-12-23T04:49:20.72
IV.SPS2.HHE. ML:2.0 0.00009365 0.32 AML other m 2021-12-23T04:49:20.93
IV.CELI.HHN. ML:1.9 0.00007295 0.32 AML other m 2021-12-23T04:49:21.55
IV.CELI.HHE. ML:1.8 0.00005369712 0.56 AML other m 2021-12-23T04:49:21.96
IV.MIGL.HHN. ML:2.5 0.00033350000000000003 0.42 AML other m 2021-12-23T04:49:22.85
IV.MIGL.HHE. ML:2.3 0.00024996835 0.4384 AML other m 2021-12-23T04:49:23.48
IV.CDRU.HNN. ML:2.3 0.00041366780000000005 0.16 AML other m 2021-12-23T04:49:03.86
IV.CDRU.HNE. ML:2.5 0.00068258775 0.1696 AML other m 2021-12-23T04:49:03.77
IV.CAR1.HNN. ML:2.4 0.00023664360000000002 0.4096 AML other m 2021-12-23T04:49:21.09
IV.CAR1.HNE. ML:2.4 0.00026268254999999995 0.3584 AML other m 2021-12-23T04:49:20.47
IV.CELI.HNN. ML:1.8 0.000059031175 0.2784 AML other m 2021-12-23T04:49:21.56
IV.CELI.HNE. ML:1.9 0.00007098499 0.56 AML other m 2021-12-23T04:49:21.96
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
Waveforms Seismic signals in miniseed + resp format Download