Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.6 on date 25-12-2019 and time 11:46:27 (Italy) in region Golfo di Salerno (Salerno)

A magnitude ML 2.6 earthquake occured in region: Golfo di Salerno (Salerno), on

  • 25-12-2019 10:46:27 (UTC)
  • 25-12-2019 11:46:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.4010, 14.7850 at 8 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
Agropoli SA 19 21481 21481
Castellabate SA 19 9188 30669

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Battipaglia (50786 inhabitants)
31 Km S of Salerno (135261 inhabitants)
34 Km S of Cava de' Tirreni (53659 inhabitants)
42 Km SE of Castellammare di Stabia (66466 inhabitants)
44 Km SE of Scafati (50787 inhabitants)
56 Km SE of Torre del Greco (86275 inhabitants)
57 Km S of Avellino (54857 inhabitants)
59 Km SE of Ercolano (53709 inhabitants)
60 Km SE of Portici (55274 inhabitants)
66 Km SE of Napoli (974074 inhabitants)
70 Km SE of Acerra (59573 inhabitants)
70 Km SE of Casoria (77642 inhabitants)
71 Km SE of Afragola (65057 inhabitants)
75 Km SE of Marano di Napoli (59874 inhabitants)
77 Km SE of Giugliano in Campania (122974 inhabitants)
77 Km SE of Pozzuoli (81661 inhabitants)
80 Km SE of Aversa (53047 inhabitants)
81 Km S of Benevento (60091 inhabitants)
84 Km SE of Caserta (76326 inhabitants)
90 Km W of Potenza (67122 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.6 2019-12-25
10:46:27		 40.401 14.7848 8 2020-02-28
16:42:17		 Bollettino Sismico Italiano INGV 75139491
Reviewed
Rev100 		ML 2.6 2019-12-25
10:46:26		 40.3878 14.7638 1 2019-12-25
11:00:58		 Sala Sismica INGV-Roma 74963631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-25 10:46:27 ± 0.4
Latitude 40.4010 ± 0.0135
Longitude 14.7848 ± 0.0154
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75139491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1683
Semi-minor axis of confidence ellipse (meter) 934
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 39
Circular confidence region, given by single value of horizontal uncertainty (meter) 1680.0
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 45
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.32830
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 74963631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-25 11:00:58

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 75139491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-14 19:04:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2019-12-25T10:48:09.55 3.0 undecidable manual Sg 8.63 0
IV.CMDO.HHZ. 2019-12-25T10:48:01.48 3.0 undecidable manual Sg 1.54 0
IV.TOLF.HHZ. 2019-12-25T10:47:55.08 3.0 undecidable manual Sg 3.74 0
IV.SFI.EHZ. 2019-12-25T10:47:43.55 3.0 negative manual Pg 8.82 0
IV.CSNT.HHZ. 2019-12-25T10:47:31.21 3.0 negative manual Pn -2.5 0
IV.CERA.HNN. 2019-12-25T10:46:53.09 0.6 undecidable manual P 334 147.4413 50 0.81 35
IV.CET2.HHZ. 2019-12-25T10:46:51.94 0.1 undecidable manual P 134 138.7611 50 1 66
IV.CIGN.HHN. 2019-12-25T10:46:51.41 0.3 undecidable manual P 4 139.3605 50 0.37 62
IV.SLCN.HHZ. 2019-12-25T10:46:50.21 0.6 undecidable manual S 91 71.6727 50 0.23 49
IV.MGR.HHZ. 2019-12-25T10:46:50.11 0.3 undecidable manual S 114 71.2731 50 0.21 74
IV.BSSO.HHE. 2019-12-25T10:46:49.00 0.3 undecidable manual P 353 128.0718 50 -0.29 65
IV.PALZ.HHZ. 2019-12-25T10:46:48.72 0.6 undecidable manual P 58 115.7952 50 1.32 29
IV.VAGA.HHZ. 2019-12-25T10:46:48.41 0.3 undecidable manual P 338 121.6893 50 0.11 69
IV.PTRP.HHZ. 2019-12-25T10:46:48.49 0.3 undecidable manual P 83 108.5136 50 2.2 23
IV.MODR.HHE. 2019-12-25T10:46:46.91 0.3 undecidable manual P 318 112.3986 50 0.03 71
IV.SACR.HNN. 2019-12-25T10:46:46.84 0.3 undecidable manual P 357 110.7003 50 0.22 68
IV.ACER.HHZ. 2019-12-25T10:46:46.82 0.3 undecidable manual P 66 106.5156 50 0.85 56
IV.SGTA.HNZ. 2019-12-25T10:46:45.57 0.3 undecidable manual P 31 94.9383 50 1.39 44
IV.VCRE.HHZ. 2019-12-25T10:46:45.98 0.3 undecidable manual S 327 55.1004 50 0.41 73
MN.CUC.HHE. 2019-12-25T10:46:45.25 0.3 undecidable manual P 117 98.3238 50 0.54 65
IV.MCRV.HHN. 2019-12-25T10:46:45.49 0.6 undecidable manual S 37 53.2023 50 0.41 49
IV.PIGN.HHZ. 2019-12-25T10:46:45.85 0.3 undecidable manual P 330 102.12 50 0.55 64
IV.VVDG.HHE. 2019-12-25T10:46:45.50 0.3 undecidable manual S 328 56.9985 50 -0.57 69
IV.VTIR.HHZ. 2019-12-25T10:46:45.47 0.6 undecidable manual S 326 54.2013 50 0.14 52
IV.SIRI.HNE. 2019-12-25T10:46:44.27 0.1 undecidable manual P 104 94.7385 50 0.11 96
IV.PSB1.HNE. 2019-12-25T10:46:44.21 0.3 undecidable manual P 1 91.242 50 0.59 65
IV.VULT.HHN. 2019-12-25T10:46:44.86 0.6 undecidable manual P 48 93.1401 50 0.96 37
IV.MCEL.HHN. 2019-12-25T10:46:43.07 0.1 undecidable manual P 95 86.3469 50 0.2 96
IV.CMPR.HHZ. 2019-12-25T10:46:42.44 0.3 undecidable manual S 102 44.7219 50 -0.36 75
IV.CDRU.HHZ. 2019-12-25T10:46:42.54 0.6 undecidable manual S 77 44.9217 50 -0.32 51
IV.VITU.HHZ. 2019-12-25T10:46:42.34 0.1 undecidable manual P 352 87.7455 50 -0.74 82
IV.CAFE.HHZ. 2019-12-25T10:46:41.43 0.3 undecidable manual P 28 79.2651 50 -0.34 71
IX.STN3.HHZ.02 2019-12-25T10:46:41.47 3.0 undecidable manual P 0.53 0
IV.MRB1.HHZ. 2019-12-25T10:46:41.97 0.3 undecidable manual P 11 81.5517 50 -0.15 74
IV.SLCN.HHZ. 2019-12-25T10:46:40.17 0.1 undecidable manual P 91 71.6727 50 -0.42 94
IV.PAOL.HHZ. 2019-12-25T10:46:40.24 0.3 undecidable manual P 345 72.2721 50 -0.45 70
IV.MGR.HHZ. 2019-12-25T10:46:39.84 0.1 undecidable manual P 114 71.2731 50 -0.71 86
IV.BULG.HHZ. 2019-12-25T10:46:38.81 0.1 undecidable manual P 125 61.6938 50 -0.25 100
IV.VVDG.HHE. 2019-12-25T10:46:38.58 0.3 undecidable manual P 328 56.9985 50 0.24 76
IV.MTMR.EHZ. 2019-12-25T10:46:38.35 0.1 undecidable manual P 18 60.2952 50 -0.49 95
IV.VCRE.HHZ. 2019-12-25T10:46:37.32 0.3 undecidable manual P 327 55.1004 50 -0.73 66
IV.VTIR.HHZ. 2019-12-25T10:46:37.91 0.3 undecidable manual P 326 54.2013 50 0 80
IV.MCRV.HHN. 2019-12-25T10:46:37.26 0.1 undecidable manual P 37 53.2023 50 -0.5 96
IV.CDRU.HHZ. 2019-12-25T10:46:35.72 0.1 negative manual P 77 44.9217 50 -0.76 88
IV.CMPR.HHZ. 2019-12-25T10:46:35.89 0.1 undecidable manual P 102 44.7219 50 -0.56 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CDRU.HHN. ML:2.4 0.000748 1.44 AML other m 2019-12-25T10:46:43.79
IV.CDRU.HHE. ML:2.6 0.0012850000000000001 0.82 AML other m 2019-12-25T10:46:44.43
IV.CMPR.HHE. ML:2.5 0.001005 0.38 AML other m 2019-12-25T10:46:48.02
IV.CMPR.HHN. ML:2.3 0.00067 0.48 AML other m 2019-12-25T10:46:48.40
IV.VTIR.HHE. ML:2.6 0.0008805000000000001 0.26 AML other m 2019-12-25T10:46:48.62
IV.VTIR.HHN. ML:2.4 0.0006490000000000001 0.3 AML other m 2019-12-25T10:46:50.21
IV.MTMR.EHE. ML:2.5 0.0006684999999999999 0.7 AML other m 2019-12-25T10:46:50.52
IV.MTMR.EHN. ML:2.4 0.000518 0.46 AML other m 2019-12-25T10:46:50.77
IV.PAOL.HHN. ML:2.5 0.0005115 0.42 AML other m 2019-12-25T10:46:53.43
IV.MGR.HHE. ML:2.6 0.0006770000000000001 0.34 AML other m 2019-12-25T10:46:53.98
IV.BULG.HNN. ML:2.8 0.0011899999999999999 0.52 AML other m 2019-12-25T10:46:54.76
IV.BULG.HHN. ML:2.8 0.00123 0.52 AML other m 2019-12-25T10:46:54.76
IV.BULG.HHE. ML:2.6 0.0008075 0.28 AML other m 2019-12-25T10:46:55.44
IV.BULG.HNE. ML:2.6 0.0007775000000000001 0.3 AML other m 2019-12-25T10:46:55.45
IV.MGR.HHN. ML:2.7 0.000861 0.42 AML other m 2019-12-25T10:46:55.57
IV.PAOL.HHE. ML:2.5 0.000482 0.42 AML other m 2019-12-25T10:46:55.51
IV.PAOL.HNE. ML:2.5 0.0005344999999999999 0.4 AML other m 2019-12-25T10:46:55.52
IV.SLCN.HHE. ML:2.8 0.0011899999999999999 0.74 AML other m 2019-12-25T10:46:56.67
IV.VITU.HNE. ML:2.4 0.0002935 1.28 AML other m 2019-12-25T10:46:57.08
IV.SLCN.HNE. ML:2.8 0.0011899999999999999 0.38 AML other m 2019-12-25T10:46:57.30
IV.PAOL.HNN. ML:2.6 0.0006739999999999999 1.06 AML other m 2019-12-25T10:46:57.79
IV.SLCN.HHN. ML:2.8 0.001063 0.48 AML other m 2019-12-25T10:46:57.11
IV.SLCN.HNN. ML:2.7 0.0008785 0.48 AML other m 2019-12-25T10:46:57.11
IV.CAFE.HHN. ML:2.5 0.0004755 1.3 AML other m 2019-12-25T10:46:58.22
IV.CAFE.HNN. ML:2.4 0.000373 1.34 AML other m 2019-12-25T10:46:58.22
IV.CAFE.HHE. ML:2.6 0.0005765 0.62 AML other m 2019-12-25T10:46:59.28
IV.CAFE.HNE. ML:2.6 0.00051 0.64 AML other m 2019-12-25T10:46:59.28
IV.MRB1.HHE. ML:2.8 0.000878 0.82 AML other m 2019-12-25T10:47:00.48
IV.MRB1.HNE. ML:2.8 0.0008465 0.84 AML other m 2019-12-25T10:47:00.90
IV.MRB1.HHN. ML:2.6 0.000634 1.52 AML other m 2019-12-25T10:47:00.13
IV.VITU.HHE. ML:2.5 0.00040149999999999995 0.66 AML other m 2019-12-25T10:47:02.17
IV.VITU.HHN. ML:2.7 0.0005965 0.42 AML other m 2019-12-25T10:47:02.55
IV.VITU.HNN. ML:2.7 0.00062 0.44 AML other m 2019-12-25T10:47:02.56
IV.MRB1.HNN. ML:2.7 0.0006785 1.08 AML other m 2019-12-25T10:47:04.63
IV.PIGN.HHE. ML:2.2 0.000167 0.5 AML other m 2019-12-25T10:47:04.62
IV.PIGN.HHN. ML:2.2 0.0001455 1 AML other m 2019-12-25T10:47:06.89
IV.ACER.HHE. ML:2.5 0.00029949999999999996 0.52 AML other m 2019-12-25T10:47:09.07
IV.ACER.HNE. ML:2.6 0.00032099999999999994 0.54 AML other m 2019-12-25T10:47:09.08
IV.CET2.HHN. ML:3.0 0.0006525 0.78 AML other m 2019-12-25T10:47:13.34
IV.VAGA.HHN. ML:2.4 0.000202 0.44 AML other m 2019-12-25T10:47:13.88
IV.ACER.HHN. ML:2.6 0.000323 0.92 AML other m 2019-12-25T10:47:14.62
IV.ACER.HNN. ML:2.6 0.0003685 0.82 AML other m 2019-12-25T10:47:14.61
IV.PALZ.HHE. ML:2.6 0.000284 0.84 AML other m 2019-12-25T10:47:16.64
IV.CET2.HHE. ML:2.8 0.000399 1 AML other m 2019-12-25T10:47:16.38
IV.VAGA.HHE. ML:2.2 0.00010385 0.76 AML other m 2019-12-25T10:47:19.19
IV.PALZ.HHN. ML:2.5 0.000261 1.16 AML other m 2019-12-25T10:47:24.76
IV.SPS2.HHN. ML:2.3 0.00006815 0.36 AML other m 2019-12-25T10:47:26.74
IV.SPS2.HHE. ML:2.3 0.00007505000000000001 1.62 AML other m 2019-12-25T10:47:28.85
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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