Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 23-10-2019 and time 11:53:18 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.5 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 23-10-2019 09:53:18 (UTC)
  • 23-10-2019 11:53:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6490, 13.9750 at 16 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
75 Km NE of Bagheria (55387 inhabitants)
80 Km NE of Palermo (674435 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 2.5 2019-10-23
09:53:18		 38.6488 13.975 17 2020-02-28
16:42:14		 Bollettino Sismico Italiano INGV 74734671
Reviewed
Rev100 		ML 2.5 2019-10-23
09:53:18		 38.6393 13.9708 10 2019-10-23
10:04:10		 Sala Sismica INGV-Roma 73407441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-23 09:53:18 ± 0.2
Latitude 38.6488 ± 0.0126
Longitude 13.9750 ± 0.0092
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74734671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1242
Semi-minor axis of confidence ellipse (meter) 576
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 185
Circular confidence region, given by single value of horizontal uncertainty (meter) 1240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.83462
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 74734671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-17 11:31:00

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 73407441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-23 10:04:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CROCE.HHZ. 2019-10-23T09:54:14.10 3.0 undecidable manual Sn -1.02 0
IV.HLNI.HHZ. 2019-10-23T09:54:04.90 0.6 undecidable manual S 151 164.2134 54 0.14 35
IV.CAR1.HHZ. 2019-10-23T09:53:48.91 3.0 undecidable manual P 71 203.6406 -1.64 0
IV.MUCR.HHZ. 2019-10-23T09:53:48.60 0.6 undecidable manual S 130 103.119 93 -0.17 43
IV.MNO.SHE. 2019-10-23T09:53:48.90 1.0 undecidable manual S 142 101.3208 93 0.6 21
IV.PETRA.HHZ. 2019-10-23T09:53:46.20 0.6 undecidable manual S 172 91.242 94 0.58 43
IV.MSFR.HHZ. 2019-10-23T09:53:45.00 0.6 undecidable manual S 142 86.7465 94 0.58 43
IV.RAFF.HHZ. 2019-10-23T09:53:45.14 0.3 undecidable manual P 168 161.8158 54 0.12 54
IV.HLNI.HHZ. 2019-10-23T09:53:45.60 0.6 undecidable manual P 151 164.2134 54 0.29 34
MN.CEL.HHZ. 2019-10-23T09:53:44.45 0.6 undecidable manual P 104 172.1943 54 -1.86 20
IV.PLLN.EHZ. 2019-10-23T09:53:43.10 1.0 undecidable manual S 169 74.2701 95 2.01 11
IV.CSLB.HHZ. 2019-10-23T09:53:42.00 0.6 undecidable manual S 175 79.2651 95 -0.42 41
IV.CAGR.HHZ. 2019-10-23T09:53:41.60 3.0 undecidable manual P 1.72 0
IV.SOLUN.HHZ. 2019-10-23T09:53:40.30 0.6 undecidable manual S 212 72.7716 95 -0.4 42
IV.GIB.HHZ. 2019-10-23T09:53:40.90 0.6 undecidable manual S 177 73.1712 95 0.09 47
IV.GALF.HHZ. 2019-10-23T09:53:39.35 3.0 undecidable manual P 0
IV.RESU.HHZ. 2019-10-23T09:53:39.13 0.1 undecidable manual P 176 111.3996 93 1.77 43
IV.USI.HHZ. 2019-10-23T09:53:39.50 0.3 undecidable manual S 276 69.2751 95 -0.25 71
IV.IFIL.HHZ. 2019-10-23T09:53:35.50 0.6 undecidable manual S 100 52.9026 98 0.09 50
IV.MUCR.HHZ. 2019-10-23T09:53:35.38 0.1 undecidable manual P 130 103.119 93 -0.7 74
IV.MNO.SHE. 2019-10-23T09:53:35.07 0.6 undecidable manual P 142 101.3208 93 -0.74 36
IV.PETRA.HHZ. 2019-10-23T09:53:34.52 0.3 undecidable manual P 172 91.242 94 0.26 67
IV.MSFR.HHZ. 2019-10-23T09:53:33.47 0.1 positive manual P 142 86.7465 94 -0.1 91
IV.PLLN.EHZ. 2019-10-23T09:53:31.72 0.1 undecidable manual P 169 74.2701 95 0.07 96
IV.CSLB.HHZ. 2019-10-23T09:53:31.95 0.1 negative manual P 175 79.2651 95 -0.46 84
IV.SOLUN.HHZ. 2019-10-23T09:53:31.38 0.1 undecidable manual P 212 72.7716 95 -0.04 95
IV.GIB.HHZ. 2019-10-23T09:53:31.35 0.3 undecidable manual P 177 73.1712 95 -0.13 69
IV.USI.HHZ. 2019-10-23T09:53:31.07 0.3 undecidable manual P 276 69.2751 95 0.2 68
IV.IACL.HHZ. 2019-10-23T09:53:30.90 0.3 undecidable manual S 111 35.3424 103 0.09 76
IV.IFIL.HHZ. 2019-10-23T09:53:28.80 0.3 undecidable manual P 100 52.9026 98 0.43 68
IV.IACL.HHZ. 2019-10-23T09:53:25.90 0.1 undecidable manual P 111 35.3424 103 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IACL.HHE. ML:0.0 0.0017114555 0.1792 AML other m 2019-10-23T09:53:33.25
IV.IACL.HHN. ML:0.0 0.0020107675 0.3008 AML other m 2019-10-23T09:53:35.24
IV.IFIL.HHN. ML:0.0 0.001415 0.38 AML other m 2019-10-23T09:53:40.24
IV.IFIL.HHE. ML:0.0 0.0043712095 0.3584 AML other m 2019-10-23T09:53:40.08
IV.SOLUN.HHN. ML:0.0 0.0004130697 0.32 AML other m 2019-10-23T09:53:41.95
IV.USI.HHN. ML:0.0 0.0008012156500000001 0.3776 AML other m 2019-10-23T09:53:45.96
IV.SOLUN.HHE. ML:0.0 0.00025921485 0.416 AML other m 2019-10-23T09:53:42.88
IV.CSLB.HHE. ML:0.0 0.0001735 0.22 AML other m 2019-10-23T09:53:43.33
IV.USI.HHE. ML:0.0 0.00022004635 0.2368 AML other m 2019-10-23T09:53:41.08
IV.GIB.HHE. ML:0.0 0.00044966115 0.2816 AML other m 2019-10-23T09:53:44.29
IV.PLLN.EHN. ML:0.0 0.00183 1.42 AML other m 2019-10-23T09:53:44.28
IV.GIB.HHN. ML:0.0 0.0005953735 0.3392 AML other m 2019-10-23T09:53:45.56
IV.PLLN.EHE. ML:0.0 0.0009018390999999999 0.4224 AML other m 2019-10-23T09:53:46.23
IV.CSLB.HHN. ML:0.0 0.00017147584999999997 0.3392 AML other m 2019-10-23T09:53:46.10
IV.MSFR.HHN. ML:0.0 0.00007798930499999999 0.4352 AML other m 2019-10-23T09:53:50.41
IV.PETRA.HHN. ML:0.0 0.0007811229500000001 0.6208 AML other m 2019-10-23T09:53:50.31
IV.MSFR.HHE. ML:0.0 0.000064731615 0.5568 AML other m 2019-10-23T09:53:51.58
IV.MUCR.HHN. ML:0.0 0.0005177721 0.7168 AML other m 2019-10-23T09:53:53.64
IV.MUCR.HHE. ML:0.0 0.0002734902 0.5632 AML other m 2019-10-23T09:53:53.84
IV.PETRA.HHE. ML:0.0 0.0006464872 0.6592 AML other m 2019-10-23T09:53:54.93
IV.RESU.HHE. ML:0.0 0.0001177919 0.64 AML other m 2019-10-23T09:53:59.80
IV.RESU.HHN. ML:0.0 0.0001975 1.28 AML other m 2019-10-23T09:54:02.76
IV.GALF.HHN. ML:2.5 0.0002714933 0.64 AML other m 2019-10-23T09:53:57.40
IV.GALF.HHE. ML:2.6 0.00029629490000000004 0.48 AML other m 2019-10-23T09:53:58.21
IV.CAGR.HHE. ML:2.3 0.00012989945 0.8832 AML other m 2019-10-23T09:54:05.95
IV.CAGR.HHN. ML:2.3 0.0001419012 1.2416 AML other m 2019-10-23T09:54:11.97
IV.HLNI.HHN. ML:2.1 0.000057837825000000006 0.32 AML other m 2019-10-23T09:54:06.04
IV.HLNI.HHE. ML:1.9 0.0000366217 0.3648 AML other m 2019-10-23T09:54:10.52
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