Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 22-03-2020 and time 00:37:51 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.4 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 21-03-2020 23:37:51 (UTC)
  • 22-03-2020 00:37:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.0390, 16.0500 at 23 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
Serra d'Aiello CS 9 458 458
Nocera Terinese CZ 10 4731 5189
Amantea CS 11 13975 19164
Falerna CZ 11 4028 23192
San Pietro in Amantea CS 12 505 23697
San Mango d'Aquino CZ 12 1564 25261
Cleto CS 13 1301 26562
Aiello Calabro CS 13 1729 28291
Belmonte Calabro CS 14 2003 30294
Gizzeria CZ 15 4982 35276
Martirano Lombardo CZ 16 1112 36388
Lago CS 17 2624 39012
Martirano CZ 18 884 39896
Longobardi CS 19 2312 42208
Grimaldi CS 20 1680 43888

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Lamezia Terme (70714 inhabitants)
34 Km SW of Cosenza (67546 inhabitants)
49 Km W of Catanzaro (90612 inhabitants)
93 Km W of Crotone (62178 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 1.4 2020-03-21
23:37:51		 39.0388 16.0503 23 2020-07-18
21:08:30		 Bollettino Sismico Italiano INGV 77726331
Reviewed
Rev100 		ML 1.4 2020-03-21
23:37:51		 39.0395 16.0552 22 2020-03-21
23:44:29		 Sala Sismica INGV-Roma 77447951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-21 23:37:51 ± 0.13
Latitude 39.0388 ± 0.0054
Longitude 16.0503 ± 0.0104
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77726331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 683
Semi-minor axis of confidence ellipse (meter) 626
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
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) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.13580
Epicentral distance of station farthest from the epicenter (degree) 1.16282
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 77447951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-21 23:44:29

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 77726331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-31 10:31:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGR.HHE. 2020-03-21T23:38:13.35 0.6 undecidable manual P 341 129.0708 96 0.22 40
IV.SERS.HHZ. 2020-03-21T23:38:09.16 0.3 undecidable manual S 90 55.0005 106 -0.16 71
IV.CET2.HHZ. 2020-03-21T23:38:08.53 0.3 undecidable manual S 351 55.0005 106 -0.78 59
IV.JOPP.HHZ. 2020-03-21T23:38:08.01 0.3 undecidable manual S 197 50.0166 108 -0.03 72
IV.MSRU.HHE. 2020-03-21T23:38:07.60 0.6 undecidable manual P 209 97.9242 98 -0.77 35
IV.PIPA.HHZ. 2020-03-21T23:38:06.89 0.6 undecidable manual P 53 82.251 100 0.9 36
IV.GRI.EHZ. 2020-03-21T23:38:05.20 0.3 undecidable manual S 127 39.9267 113 -0.31 70
IV.SPS2.HHZ. 2020-03-21T23:38:04.80 0.3 undecidable manual S 41 37.4292 114 -0.1 74
MN.TIP.HHZ. 2020-03-21T23:38:03.18 0.3 undecidable manual P 75 62.8926 103 0.12 71
IV.CET2.HHZ. 2020-03-21T23:38:02.04 0.6 undecidable manual P 351 55.0005 106 0.16 47
IV.CAR1.HHZ. 2020-03-21T23:38:02.50 0.3 undecidable manual S 30 27.5502 123 -0.09 76
IV.CELI.HHZ. 2020-03-21T23:38:02.09 0.3 undecidable manual P 44 56.3991 105 0 73
IV.SERS.HHZ. 2020-03-21T23:38:02.00 0.3 undecidable manual P 90 55.0005 106 0.12 72
XK.SELL.HHZ. 2020-03-21T23:38:01.22 0.1 undecidable manual P 97 50.2164 108 0.05 98
IV.JOPP.HHZ. 2020-03-21T23:38:01.42 0.3 undecidable manual P 197 50.0166 108 0.28 70
XK.ALB1.HNZ. 2020-03-21T23:38:00.13 0.6 undecidable manual P 92 47.2194 109 -0.6 42
XK.GIZZ.HHZ. 2020-03-21T23:38:00.10 0.3 undecidable manual S 116 15.0738 143 -0.03 78
IV.SPS2.HHZ. 2020-03-21T23:37:59.51 0.3 negative manual P 41 37.4292 114 0.18 73
IV.GRI.EHZ. 2020-03-21T23:37:59.72 0.1 undecidable manual P 127 39.9267 113 0.03 100
IV.CAR1.HHZ. 2020-03-21T23:37:58.25 0.1 undecidable manual P 30 27.5502 123 0.25 97
XK.GIZZ.HHZ. 2020-03-21T23:37:56.84 0.1 undecidable manual P 116 15.0738 143 0.26 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HHN. ML:1.5 0.00014175480000000001 0.2944 AML other m 2020-03-21T23:38:03.45
IV.CAR1.HNE. ML:1.6 0.000184649935 1.8592 AML other m 2020-03-21T23:38:03.98
IV.CAR1.HNN. ML:1.6 0.00016846709499999997 0.1792 AML other m 2020-03-21T23:38:03.21
IV.CAR1.HHE. ML:1.7 0.0002076757 0.1664 AML other m 2020-03-21T23:38:02.97
IV.SPS2.HHE. ML:1.1 0.000038707965 0.2048 AML other m 2020-03-21T23:38:05.23
IV.SPS2.HHN. ML:1.0 0.000029581154999999997 0.4096 AML other m 2020-03-21T23:38:05.08
IV.GRI.EHE. ML:1.5 0.00008360403 0.1792 AML other m 2020-03-21T23:38:05.47
IV.GRI.EHN. ML:1.4 0.00007749259 0.1408 AML other m 2020-03-21T23:38:05.48
IV.JOPP.HHN. ML:1.2 0.000041031075 0.1408 AML other m 2020-03-21T23:38:09.14
IV.JOPP.HHE. ML:1.2 0.000034317456000000004 0.1792 AML other m 2020-03-21T23:38:09.06
IV.CET2.HHE. ML:1.4 0.00005542937 0.1408 AML other m 2020-03-21T23:38:09.01
IV.CET2.HHN. ML:1.7 0.00010028521 0.1536 AML other m 2020-03-21T23:38:09.12
IV.CELI.HHN. ML:0.9 0.000017446405000000003 0.2944 AML other m 2020-03-21T23:38:10.25
MN.TIP.HHN. ML:1.1 0.000024963845 0.576 AML other m 2020-03-21T23:38:11.94
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