Earthquake with magnitude of ML 2.0 on date 28-12-2021 and time 18:30:13 (UTC) in region 1 km NE Salsomaggiore Terme (PR)

A magnitude ML 2.0 earthquake occured in region: 1 km NE Salsomaggiore Terme (PR), on

  • 28-12-2021 18:30:13 (UTC)
  • 28-12-2021 19:30:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8240, 9.9920 at 25 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Salsomaggiore Terme PR 1 19831 19831
Fidenza PR 7 26770 46601
Alseno PC 8 4714 51315
Castell'Arquato PC 10 4713 56028
Pellegrino Parmense PR 11 1048 57076
Vernasca PC 13 2131 59207
Lugagnano Val d'Arda PC 13 4116 63323
Fiorenzuola d'Arda PC 13 15297 78620
Medesano PR 14 10828 89448
Noceto PR 15 13001 102449
Fontevivo PR 15 5597 108046
Varano de' Melegari PR 15 2676 110722
Soragna PR 16 4834 115556
Fontanellato PR 16 7033 122589
Fornovo di Taro PR 17 6100 128689
Busseto PR 18 7054 135743
Besenzone PC 19 978 136721
Carpaneto Piacentino PC 19 7715 144436
Cadeo PC 19 6118 150554
Bore PR 19 749 151303
Collecchio PR 19 14403 165706
Cortemaggiore PC 20 4644 170350

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Parma (192836 inhabitants)
35 Km SE of Piacenza (102191 inhabitants)
35 Km S of Cremona (71901 inhabitants)
52 Km W of Reggio nell'Emilia (171345 inhabitants)
71 Km W of Carpi (70699 inhabitants)
77 Km W of Modena (184973 inhabitants)
77 Km SE of Pavia (72576 inhabitants)
81 Km N of La Spezia (93959 inhabitants)
82 Km S of Brescia (196480 inhabitants)
83 Km N of Carrara (63133 inhabitants)
88 Km N of Massa (69479 inhabitants)
95 Km SE of Milano (1345851 inhabitants)
96 Km E of Genova (586655 inhabitants)
99 Km SE of Sesto San Giovanni (81608 inhabitants)
100 Km S of Bergamo (119381 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 2.0 2021-12-28
18:30:13
44.8242 9.992 25 2022-03-30
13:04:30
Bollettino Sismico Italiano INGV 99715351
Reviewed
Rev100
ML 2.0 2021-12-28
18:30:13
44.7822 10.0317 23 2021-12-28
18:42:13
Sala Sismica INGV-Roma 99085151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-28 18:30:13 ± 0.09
Latitude 44.8242 ± 0.0054
Longitude 9.9920 ± 0.0101
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99715351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 834
Semi-minor axis of confidence ellipse (meter) 341
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.31661
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 99085151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-28 18:42:13

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 99715351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-03 09:55:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2021-12-28T18:32:09.21 3.0 undecidable manual Pn -2.07 0
SL.LJU.BHZ. 2021-12-28T18:32:07.82 3.0 undecidable manual Sg 18.77 0
IV.SERS.HHZ. 2021-12-28T18:32:04.87 3.0 undecidable manual Pn 4.37 0
IV.VVLD.HHZ. 2021-12-28T18:31:54.76 3.0 undecidable manual Sn -2.65 0
IV.TDS.HHZ. 2021-12-28T18:31:51.30 3.0 undecidable manual Pn -0.27 0
IV.LAV9.HHZ. 2021-12-28T18:31:19.50 3.0 negative manual Pg 13.46 0
IV.CRTC.HHZ. 2021-12-28T18:31:17.77 3.0 undecidable manual Sn -1.62 0
IV.VVLD.HHZ. 2021-12-28T18:31:12.06 3.0 undecidable manual Pn 2.04 0
IV.CPGN.EHZ. 2021-12-28T18:31:12.21 3.0 undecidable manual Sn 2.22 0
IV.ARVD.HHZ. 2021-12-28T18:30:59.87 3.0 undecidable manual Pg 9.08 0
IV.FRON.EHZ. 2021-12-28T18:30:56.41 3.0 undecidable manual Pg 7.64 0
IV.BDI.HNZ. 2021-12-28T18:30:42.10 0.6 undecidable manual S 150 0.8741 99 0.18 52
IV.SGAL.EHN. 2021-12-28T18:30:39.70 0.6 undecidable manual S 17 0.7725 101 0.76 43
CH.MUGIO.HHN. 2021-12-28T18:30:37.42 0.6 undecidable manual P 329 1.2842 54 1.04 34
IV.MABI.HHZ. 2021-12-28T18:30:36.72 0.6 undecidable manual P 16 1.2833 54 0.35 45
SI.LUSI.HHZ. 2021-12-28T18:30:36.26 0.6 undecidable manual P 30 1.3166 54 -0.57 42
GU.SARM.EHN. 2021-12-28T18:30:36.60 0.6 undecidable manual S 155 0.7033 102 -0.33 50
IV.ZOVE.EHZ. 2021-12-28T18:30:35.53 0.3 undecidable manual P 59 1.2276 54 -0.07 73
ST.RONC.HNE. 2021-12-28T18:30:35.91 0.3 undecidable manual P 21 1.2375 54 0.17 70
IV.MSSA.HHE. 2021-12-28T18:30:34.56 0.6 undecidable manual S 214 0.6097 104 0.32 54
OX.MARN.HNN. 2021-12-28T18:30:34.63 0.6 undecidable manual P 46 1.1817 54 -0.33 46
ST.VARA.EHZ. 2021-12-28T18:30:34.98 0.3 undecidable manual P 32 1.1862 54 -0.05 74
IV.ROVR.HHZ. 2021-12-28T18:30:33.96 0.1 undecidable manual P 42 1.1197 97 -0.01 100
IV.MAGA.HHZ. 2021-12-28T18:30:32.60 0.3 undecidable manual P 25 1.0504 98 -0.19 74
IV.BAG8.EHE. 2021-12-28T18:30:32.65 1.0 undecidable manual P 18 1.0522 98 -0.17 25
IV.MBAL.EHZ. 2021-12-28T18:30:32.78 0.3 undecidable manual P 35 1.0648 97 -0.25 73
IV.ZEN8.EHZ. 2021-12-28T18:30:31.04 0.3 undecidable manual P 32 0.9659 98 -0.32 74
GU.POPM.HHZ. 2021-12-28T18:30:31.39 1.0 undecidable manual P 145 0.9506 98 0.28 25
IV.BDI.HNZ. 2021-12-28T18:30:30.47 0.3 undecidable manual P 150 0.8741 99 0.66 69
IV.SGAL.EHN. 2021-12-28T18:30:28.59 0.6 undecidable manual P 17 0.7725 101 0.5 48
IV.BOB.HHE. 2021-12-28T18:30:28.40 0.3 undecidable manual S 262 0.3903 113 0.35 83
GU.SARM.EHN. 2021-12-28T18:30:27.09 0.6 undecidable manual P 155 0.7033 102 0.16 54
GU.EQUI.HHN. 2021-12-28T18:30:27.02 1.0 undecidable manual P 170 0.6673 103 0.68 24
GU.GRAM.HHZ. 2021-12-28T18:30:26.80 0.3 undecidable manual S 171 0.3372 117 0.16 88
IV.MSSA.HHE. 2021-12-28T18:30:24.80 0.3 undecidable manual P 214 0.6097 104 -0.58 72
IV.ERBM.EHE. 2021-12-28T18:30:23.89 0.6 undecidable manual P 143 0.5027 107 0.27 55
GU.GORR.HHN. 2021-12-28T18:30:23.92 0.3 undecidable manual P 247 0.5423 106 -0.33 79
IV.BOB.HHE. 2021-12-28T18:30:21.26 0.3 undecidable manual P 262 0.3903 113 -0.54 77
GU.GRAM.HHZ. 2021-12-28T18:30:20.40 0.3 undecidable manual P 171 0.3372 117 -0.59 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHN. ML:2.1 0.000368 0.38 AML other m 2021-12-28T18:30:27.41
GU.GRAM.HHE. ML:1.9 0.00023549999999999998 0.34 AML other m 2021-12-28T18:30:31.56
IV.MABI.HHN. ML:1.4 0.000015550000000000002 1.7 AML other m 2021-12-28T18:30:37.13
IV.ZEN8.EHN. ML:1.2 0.000015968083500000002 0.256 AML other m 2021-12-28T18:30:46.36
IV.ZEN8.EHE. ML:1.1 0.00001151377 0.2944 AML other m 2021-12-28T18:30:46.63
IV.MBAL.EHN. ML:1.8 0.00005091211499999999 0.2688 AML other m 2021-12-28T18:30:49.36
IV.MAGA.HHN. ML:2.0 0.00007475000000000001 1.46 AML other m 2021-12-28T18:30:49.91
IV.MBAL.EHE. ML:1.9 0.00006490533 0.4608 AML other m 2021-12-28T18:30:50.30
IV.ROVR.HHN. ML:2.2 0.00011341485500000001 0.2048 AML other m 2021-12-28T18:30:51.36
IV.ROVR.HHE. ML:1.9 0.0000511 0.26 AML other m 2021-12-28T18:30:52.75
IV.MAGA.HHE. ML:2.1 0.00009445 1.48 AML other m 2021-12-28T18:30:53.24
ST.VARA.EHE. ML:2.3 0.000117702735 0.4224 AML other m 2021-12-28T18:30:54.76
SI.LUSI.HHN. ML:2.3 0.0001047717 0.4224 AML other m 2021-12-28T18:30:55.90
SI.LUSI.HHE. ML:2.1 0.00006709999999999999 0.36 AML other m 2021-12-28T18:30:56.34
IV.ROVR.HNN. ML:2.4 0.00016345385 0.9344 AML other m 2021-12-28T18:30:59.11
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, http://terremoti.ingv.it/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