Earthquake with magnitude of ML 1.3 on date 23-07-2020 and time 22:41:30 (UTC) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.3 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 23-07-2020 22:41:30 (UTC)
  • 24-07-2020 00:41:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.04, 16.05 at 22 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
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 16 2624 39012
Martirano CZ 18 884 39896
Longobardi CS 19 2312 42208
Grimaldi CS 19 1680 43888

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Lamezia Terme (70714 inhabitants)
33 Km SW of Cosenza (67546 inhabitants)
50 Km W of Catanzaro (90612 inhabitants)
93 Km W of Crotone (62178 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 1.3 2020-07-23
22:41:30
39.04 16.05 22 2020-07-23
22:48:21
Sala Sismica INGV-Roma 81287411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-23 22:41:30 ± 0.1
Latitude 39.04 ± 0.00
Longitude 16.05 ± 0.01
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81287411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.6655
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 81287411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-23 22:48:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MAON.HHZ. 2020-07-23T22:43:00.18 3.0 undecidable manual Pg 16.459999 0
IV.CSP1.EHZ. 2020-07-23T22:42:38.97 3.0 negative manual Pn 1.55 0
HL.VLS.HHZ. 2020-07-23T22:42:35.34 3.0 positive manual Pg 10.53 0
IV.SRES.HHZ. 2020-07-23T22:42:33.68 3.0 positive manual Pn 1.84 0
IV.CROCE.HHZ. 2020-07-23T22:42:16.92 3.0 positive manual Pg 8.02 0
IV.CMPR.HHZ. 2020-07-23T22:42:13.08 3.0 undecidable manual Sn 0.79 0
IV.VBKN.HHZ. 2020-07-23T22:42:08.83 3.0 negative manual Pg 4.42 0
IV.PLAC.HHZ. 2020-07-23T22:41:52.57 1.0 undecidable manual S 153 0.6655 100 -0.12 23
MN.TIP.HHZ. 2020-07-23T22:41:50.04 0.6 undecidable manual S 76 0.5666 102 0.22 46
IV.CELI.HHZ. 2020-07-23T22:41:48.19 0.1 undecidable manual S 44 0.5063 104 0.1 96
IV.SERS.HHZ. 2020-07-23T22:41:47.19 1.0 undecidable manual S 91 0.4955 104 -0.6 21
IV.CET2.HHZ. 2020-07-23T22:41:47.16 0.3 undecidable manual S 351 0.4919 104 -0.52 66
IV.MSRU.HHZ. 2020-07-23T22:41:46.10 3.0 positive manual P -0.5 0
IV.JOPP.HHZ. 2020-07-23T22:41:46.47 0.3 undecidable manual S 196 0.4533 106 -0.1 73
XK.SELL.HHZ. 2020-07-23T22:41:46.48 0.6 undecidable manual S 97 0.4533 106 -0.08 49
XK.ALB1.HHZ. 2020-07-23T22:41:45.53 0.1 undecidable manual S 92 0.4254 107 -0.25 95
MN.CEL.HHZ. 2020-07-23T22:41:44.85 3.0 negative manual P -0.45 0
IV.PLAC.HHZ. 2020-07-23T22:41:43.49 0.6 undecidable manual P 153 0.6655 100 0.27 45
IV.GRI.EHZ. 2020-07-23T22:41:43.70 0.3 undecidable manual S 127 0.3624 111 -0.3 71
MN.TIP.HHZ. 2020-07-23T22:41:41.85 1.0 positive manual P 76 0.5666 102 0.29 23
IV.CAR1.HHZ. 2020-07-23T22:41:41.03 0.3 undecidable manual S 31 0.2455 121 0.14 76
IV.CET2.HHZ. 2020-07-23T22:41:40.32 0.1 negative manual P 351 0.4919 104 0 98
IV.SERS.HHZ. 2020-07-23T22:41:40.49 0.6 negative manual P 91 0.4955 104 0.11 48
IV.CELI.HHZ. 2020-07-23T22:41:40.63 0.6 negative manual P 44 0.5063 104 0.08 48
XK.SELL.HHZ. 2020-07-23T22:41:39.86 0.6 positive manual P 97 0.4533 106 0.19 48
XK.ALB1.HHZ. 2020-07-23T22:41:39.17 0.6 undecidable manual P 92 0.4254 107 -0.05 49
IV.JOPP.HHZ. 2020-07-23T22:41:39.86 0.6 negative manual P 196 0.4533 106 0.18 48
IV.GRI.EHZ. 2020-07-23T22:41:38.26 0.1 undecidable manual P 127 0.3624 111 0.06 100
XK.GIZZ.HHZ. 2020-07-23T22:41:38.32 0.3 undecidable manual S 117 0.1376 140 -0.12 77
IV.CAR1.HHZ. 2020-07-23T22:41:36.71 1.0 undecidable manual P 31 0.2455 121 0.31 24
XK.GIZZ.HHZ. 2020-07-23T22:41:35.26 0.1 positive manual P 117 0.1376 140 0.27 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HNN. ML:2.1 0.0005425 0.36 AML other m 2020-07-23T22:41:41.46
IV.CAR1.HHE. ML:2.1 0.000509 0.22 AML other m 2020-07-23T22:41:41.43
IV.CAR1.HHN. ML:2 0.000381 0.48 AML other m 2020-07-23T22:41:41.46
IV.CAR1.HNE. ML:2 0.0004085 0.68 AML other m 2020-07-23T22:41:42.42
IV.GRI.EHE. ML:1.6 0.000125 0.38 AML other m 2020-07-23T22:41:44.82
IV.GRI.EHN. ML:1.6 0.0001175 0.38 AML other m 2020-07-23T22:41:47.48
IV.CET2.HHN. ML:1.8 0.0001195 0.9 AML other m 2020-07-23T22:41:47.74
IV.SERS.HHE. ML:1.2 3.31E-5 0.26 AML other m 2020-07-23T22:41:47.91
IV.JOPP.HHE. ML:1.4 5.29E-5 0.62 AML other m 2020-07-23T22:41:47.99
IV.CET2.HHE. ML:1.4 5.845E-5 0.28 AML other m 2020-07-23T22:41:48.29
IV.SERS.HHN. ML:1.1 2.595E-5 1.44 AML other m 2020-07-23T22:41:48.93
IV.CELI.HHE. ML:1.2 3.61E-5 0.6 AML other m 2020-07-23T22:41:48.59
IV.CELI.HHN. ML:1.2 3.325E-5 0.24 AML other m 2020-07-23T22:41:48.47
IV.JOPP.HHN. ML:1.4 5.65E-5 1.42 AML other m 2020-07-23T22:41:48.07
MN.TIP.HHE. ML:1 1.815E-5 0.72 AML other m 2020-07-23T22:41:50.83
MN.TIP.HHN. ML:0.9 1.525E-5 1.34 AML other m 2020-07-23T22:41:52.76
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