Earthquake with magnitude of ML 2.1 on date 09-07-2020 and time 06:48:18 (Italy) in region 2 km W Castelnuovo Magra (SP)

A magnitude ML 2.1 earthquake occured in region: 2 km W Castelnuovo Magra (SP), on

  • 09-07-2020 04:48:18 (UTC)
  • 09-07-2020 06:48:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1, 9.99 at 8 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
Castelnuovo Magra SP 2 8415 8415
Sarzana SP 3 21976 30391
Fosdinovo MS 4 4883 35274
Ortonovo SP 5 8277 43551
Ameglia SP 5 4365 47916
Arcola SP 7 10607 58523
Lerici SP 7 10228 68751
Santo Stefano di Magra SP 9 9360 78111
Carrara MS 9 63133 141244
Vezzano Ligure SP 9 7356 148600
Aulla MS 12 11263 159863
Podenzana MS 12 2180 162043
Bolano SP 12 7813 169856
Follo SP 12 6337 176193
La Spezia SP 13 93959 270152
Portovenere SP 13 3630 273782
Massa MS 14 69479 343261
Tresana MS 15 2044 345305
Montignoso MS 18 10323 355628
Fivizzano MS 18 7925 363553
Casola in Lunigiana MS 18 988 364541
Licciana Nardi MS 18 4949 369490
Minucciano LU 19 2102 371592
Riccò del Golfo di Spezia SP 19 3698 375290
Calice al Cornoviglio SP 20 1138 376428

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km W of Carrara (63133 inhabitants)
13 Km E of La Spezia (93959 inhabitants)
14 Km NW of Massa (69479 inhabitants)
34 Km NW of Viareggio (62467 inhabitants)
50 Km NW of Lucca (89046 inhabitants)
54 Km NW of Pisa (89158 inhabitants)
66 Km NW of Livorno (159219 inhabitants)
77 Km W of Pistoia (90315 inhabitants)
82 Km SW of Parma (192836 inhabitants)
83 Km SW of Reggio nell'Emilia (171345 inhabitants)
91 Km E of Genova (586655 inhabitants)
92 Km W of Prato (191150 inhabitants)
96 Km SW of Modena (184973 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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
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 2.1 2020-07-09
04:48:18
44.1 9.99 8 2020-07-09
04:54:05
Sala Sismica INGV-Roma 80899621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-09 04:48:18 ± 0.15
Latitude 44.10 ± 0.01
Longitude 9.99 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80899621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1061
Semi-minor axis of confidence ellipse (meter) 526
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 22
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
Epicentral distance of station farthest from the epicenter (degree) 1.12235
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 11
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 58
Type of magnitude ML
Reference to an origin 80899621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-09 04:54:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
ST.PANI.EHZ. 2020-07-09T04:48:57.65 3.0 undecidable manual Pn 1.28 0
IV.RUFI.EHZ. 2020-07-09T04:48:56.47 3.0 undecidable manual S -3.26 0
GU.PCP.HHZ. 2020-07-09T04:48:55.10 0.6 undecidable manual S 293 1.1224 50 -0.32 39
IV.VARE.HHZ. 2020-07-09T04:48:55.39 3.0 negative manual Pg 2.16 0
ST.DOSS.HHZ. 2020-07-09T04:48:54.64 3.0 positive manual Pg 0.97 0
SI.LUSI.HHZ. 2020-07-09T04:48:54.73 3.0 positive manual Pg 1 0
ST.VARA.EHZ. 2020-07-09T04:48:53.73 3.0 negative manual Pg 1.87 0
IV.MAGA.HHZ. 2020-07-09T04:48:51.43 3.0 undecidable manual Pg 1.05 0
IV.MBAL.EHZ. 2020-07-09T04:48:51.26 3.0 positive manual Pg 1.18 0
IV.MPPT.EHZ. 2020-07-09T04:48:46.17 0.6 undecidable manual S 100 0.8031 50 0.19 43
GU.RNCA.HHZ. 2020-07-09T04:48:46.66 0.3 undecidable manual S 297 0.8292 50 -0.08 65
IV.CRE.HHZ. 2020-07-09T04:48:46.20 3.0 negative manual P -0.3 0
IV.CRMI.HHZ. 2020-07-09T04:48:45.58 0.6 undecidable manual S 113 0.7752 50 0.44 41
IV.CASP.HHZ. 2020-07-09T04:48:44.73 3.0 positive manual P -0.54 0
IV.SFI.EHZ. 2020-07-09T04:48:44.06 3.0 negative manual P -0.61 0
GU.GORR.HHZ. 2020-07-09T04:48:43.21 0.6 undecidable manual S 315 0.7087 50 0.05 45
IV.QLNO.HHZ. 2020-07-09T04:48:43.40 3.0 negative manual P 1.4 0
IV.CELB.HHZ. 2020-07-09T04:48:43.41 3.0 undecidable manual P -0.36 0
GU.CANO.HHZ. 2020-07-09T04:48:41.99 3.0 negative manual P -0.79 0
IV.SEI.HHZ. 2020-07-09T04:48:40.26 3.0 negative manual P 1.07 0
IV.RUFI.EHZ. 2020-07-09T04:48:40.83 3.0 positive manual P -0.67 0
GU.PCP.HHZ. 2020-07-09T04:48:40.39 0.6 negative manual P 293 1.1224 50 0.37 38
IV.RONT.HHZ. 2020-07-09T04:48:40.66 3.0 negative manual P 0.44 0
IV.CSNT.HHZ. 2020-07-09T04:48:40.32 3.0 undecidable manual P -0.93 0
IV.PII.HHZ. 2020-07-09T04:48:38.35 0.6 undecidable manual S 135 0.5423 50 0.12 46
GU.POPM.HHZ. 2020-07-09T04:48:37.81 0.6 undecidable manual S 96 0.5531 50 -0.76 38
GU.GSCL.HHZ. 2020-07-09T04:48:36.70 0.6 undecidable manual S 60 0.4937 50 -0.1 47
IV.ZCCA.HHZ. 2020-07-09T04:48:36.35 3.0 positive manual P 1.18 0
GU.RNCA.HHZ. 2020-07-09T04:48:35.45 0.6 negative manual P 297 0.8292 50 0.43 40
IV.MPPT.EHZ. 2020-07-09T04:48:35.55 0.6 positive manual P 100 0.8031 50 0.98 33
IV.BDI.HHZ. 2020-07-09T04:48:34.08 0.3 undecidable manual S 95 0.4362 50 -1.02 52
IV.CRMI.HHZ. 2020-07-09T04:48:34.65 0.6 negative manual P 113 0.7752 50 0.56 39
GU.GRAM.HHZ. 2020-07-09T04:48:33.72 0.6 undecidable manual S 8 0.3912 50 -0.04 48
GU.GORR.HHZ. 2020-07-09T04:48:32.94 0.1 undecidable manual P 315 0.7087 50 -0.01 91
IV.PII.HHZ. 2020-07-09T04:48:30.04 0.3 negative manual P 135 0.5423 50 -0.06 70
GU.POPM.HHZ. 2020-07-09T04:48:30.33 0.3 negative manual P 96 0.5531 50 0.04 70
GU.GSCL.HHZ. 2020-07-09T04:48:29.66 0.6 positive manual P 60 0.4937 50 0.38 44
IV.BDI.HHZ. 2020-07-09T04:48:28.23 0.6 negative manual P 95 0.4362 50 -0.06 48
GU.GRAM.HHZ. 2020-07-09T04:48:27.45 0.1 positive manual P 8 0.3912 50 -0.07 96
IV.PLMA.HHZ. 2020-07-09T04:48:23.65 0.3 undecidable manual S 241 0.1124 122 -0.44 70
IV.PLMA.HHZ. 2020-07-09T04:48:22.06 0.1 undecidable manual P 241 0.1124 122 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BDI.HHE. ML:0 0.0002852157 0.3392 AML other m 2020-07-09T04:48:37.71
IV.BDI.HHN. ML:0 0.00026345895 0.5792 AML other m 2020-07-09T04:48:35.50
IV.ZCCA.HNE. ML:0 0.00072952315 1.0816 AML other m 2020-07-09T04:48:36.99
IV.ZCCA.HHN. ML:0 7.5377915E-5 0.32 AML other m 2020-07-09T04:48:51.54
IV.ZCCA.HHE. ML:0 7.074853E-5 0.32 AML other m 2020-07-09T04:48:54.31
GU.PCP.HHN. ML:0 4.1043425E-5 0.4608 AML other m 2020-07-09T04:48:58.28
IV.ZCCA.HNN. ML:0 0.0008864331 2.3104 AML other m 2020-07-09T04:48:36.99
GU.PCP.HHE. ML:0 3.787686E-5 0.32 AML other m 2020-07-09T04:48:58.88
IV.PLMA.HHE. ML:2.8 0.0070240985 0.1216 AML other m 2020-07-09T04:48:23.72
IV.PLMA.HHN. ML:2.7 0.0054976115 0.16 AML other m 2020-07-09T04:48:23.82
GU.GRAM.HHE. ML:2.3 0.0006504843 0.2016 AML other m 2020-07-09T04:48:33.91
GU.GRAM.HHN. ML:2.3 0.0006183478 0.1408 AML other m 2020-07-09T04:48:36.52
IV.BDI.HNE. ML:2 0.0002863007 0.3808 AML other m 2020-07-09T04:48:35.86
IV.BDI.HNN. ML:1.9 0.0002402964 0.3712 AML other m 2020-07-09T04:48:35.82
GU.GSCL.HHE. ML:2.5 0.0008220239 0.2208 AML other m 2020-07-09T04:48:37.65
GU.GSCL.HHN. ML:2.3 0.00050334165 0.2016 AML other m 2020-07-09T04:48:37.69
IV.PII.HHE. ML:2.5 0.00061131375 0.4416 AML other m 2020-07-09T04:48:38.73
IV.PII.HHN. ML:2.4 0.0004610301 0.32 AML other m 2020-07-09T04:48:38.93
GU.POPM.HHE. ML:2.5 0.0006043906 0.2016 AML other m 2020-07-09T04:48:41.40
GU.POPM.HHN. ML:2.4 0.00055688675 0.2208 AML other m 2020-07-09T04:48:41.34
GU.GORR.HHE. ML:2.2 0.00023334415 0.16 AML other m 2020-07-09T04:48:46.64
GU.GORR.HHN. ML:2.2 0.0002440391 0.4576 AML other m 2020-07-09T04:48:45.95
IV.CRMI.HHE. ML:1.4 2.8451195E-5 0.3392 AML other m 2020-07-09T04:48:48.81
IV.CRMI.HHN. ML:1.6 5.0152415E-5 0.2624 AML other m 2020-07-09T04:48:48.86
IV.CRMI.HNE. ML:1.9 8.837786E-5 0.2976 AML other m 2020-07-09T04:48:48.83
IV.CRMI.HNN. ML:1.9 0.000105133925 0.2624 AML other m 2020-07-09T04:48:48.86
GU.RNCA.HHE. ML:2 9.9520145E-5 0.1184 AML other m 2020-07-09T04:48:49.37
GU.RNCA.HHN. ML:2 0.00011737735 0.1792 AML other m 2020-07-09T04:48:48.88
IV.MPPT.EHE. ML:1.9 8.746724E-5 0.5216 AML other m 2020-07-09T04:48:49.72
IV.MPPT.EHN. ML:2 0.00010562013 0.32 AML other m 2020-07-09T04:48:48.99
IV.SEI.HHE. ML:2.1 0.00011395365 0.4192 AML other m 2020-07-09T04:48:59.73
IV.SEI.HHN. ML:2.4 0.00023494275 0.5408 AML other m 2020-07-09T04:48:54.34
IV.CSNT.HHE. ML:1.6 2.9235355E-5 1.28 AML other m 2020-07-09T04:49:00.18
IV.CSNT.HHN. ML:1.7 3.3141775E-5 0.6784 AML other m 2020-07-09T04:48:59.11
IV.RONT.HHE. ML:2.5 0.0002279487 0.3008 AML other m 2020-07-09T04:48:58.96
IV.RONT.HHN. ML:2.2 0.0001423014 0.2784 AML other m 2020-07-09T04:48:56.68
IV.RUFI.EHE. ML:2 6.619452E-5 0.3424 AML other m 2020-07-09T04:48:57.36
IV.RUFI.EHN. ML:2.1 7.955508E-5 8.8 AML other m 2020-07-09T04:49:24.53
GU.CANO.HHE. ML:2.1 6.9485865E-5 0.4 AML other m 2020-07-09T04:48:58.70
GU.CANO.HHN. ML:2.2 8.62627E-5 0.4 AML other m 2020-07-09T04:48:58.49
IV.QLNO.HHE. ML:1.8 3.6606645E-5 0.6816 AML other m 2020-07-09T04:49:00.29
IV.QLNO.HHN. ML:1.7 2.909711E-5 0.3392 AML other m 2020-07-09T04:49:00.08
IV.CELB.HHE. ML:2.6 0.000184085 0.08 AML other m 2020-07-09T04:49:03.18
IV.CELB.HHN. ML:2.8 0.0003436248 0.08 AML other m 2020-07-09T04:49:03.10
IV.SFI.EHE. ML:1.7 2.4578905E-5 0.5984 AML other m 2020-07-09T04:49:14.35
IV.SFI.EHN. ML:1.7 2.3137765E-5 0.96 AML other m 2020-07-09T04:49:13.92
IV.SFI.HNE. ML:2.4 0.00014096195 1.728 AML other m 2020-07-09T04:49:04.68
IV.SFI.HNN. ML:2.4 0.00014183645 2.2784 AML other m 2020-07-09T04:49:12.25
IV.CASP.HHE. ML:1.8 2.597219E-5 0.4 AML other m 2020-07-09T04:49:09.41
IV.CASP.HHN. ML:1.8 3.0338785E-5 0.5184 AML other m 2020-07-09T04:49:09.84
IV.CRE.HHE. ML:1.8 2.9045375E-5 0.3584 AML other m 2020-07-09T04:49:14.42
IV.CRE.HHN. ML:1.8 2.8486095E-5 0.2208 AML other m 2020-07-09T04:49:11.02
IV.MBAL.EHE. ML:2.3 5.983456E-5 0.56 AML other m 2020-07-09T04:49:19.94
IV.MBAL.EHN. ML:2.2 4.910317E-5 2.7584 AML other m 2020-07-09T04:49:21.90
IV.MBAL.HNE. ML:2.7 0.0001720951 1.1616 AML other m 2020-07-09T04:49:48.97
IV.MBAL.HNN. ML:2.8 0.0001867057 2.4224 AML other m 2020-07-09T04:49:26.25
IV.MAGA.HHE. ML:2.6 0.00011522169 0.32 AML other m 2020-07-09T04:49:23.15
IV.MAGA.HHN. ML:2.2 5.510106E-5 0.2784 AML other m 2020-07-09T04:49:27.10
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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 full SEED format Download