Earthquake with magnitude of ML 1.7 on date 21-07-2021 and time 04:22:41 (Italy) in region 5 km E Felino (PR)

A magnitude ML 1.7 earthquake occured in region: 5 km E Felino (PR), on

  • 21-07-2021 02:22:41 (UTC)
  • 21-07-2021 04:22:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.7110, 10.3060 at 19 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
Felino PR 5 8790 8790
Sala Baganza PR 6 5561 14351
Lesignano de' Bagni PR 7 5028 19379
Collecchio PR 9 14403 33782
Montechiarugolo PR 9 10813 44595
Traversetolo PR 10 9425 54020
Parma PR 10 192836 246856
Langhirano PR 11 10315 257171
Montecchio Emilia RE 11 10530 267701
Sant'Ilario d'Enza RE 13 11205 278906
San Polo d'Enza RE 13 6083 284989
Medesano PR 14 10828 295817
Neviano degli Arduini PR 14 3649 299466
Bibbiano RE 14 10268 309734
Noceto PR 15 13001 322735
Canossa RE 15 3844 326579
Quattro Castella RE 16 13195 339774
Fornovo di Taro PR 17 6100 345874
Gattatico RE 17 5837 351711
Cavriago RE 18 9839 361550
Sorbolo PR 19 9544 371094
Calestano PR 19 2100 373194
Fontevivo PR 19 5597 378791
Campegine RE 20 5029 383820

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km S of Parma (192836 inhabitants)
26 Km W of Reggio nell'Emilia (171345 inhabitants)
47 Km W of Carpi (70699 inhabitants)
50 Km W of Modena (184973 inhabitants)
52 Km SE of Cremona (71901 inhabitants)
61 Km SE of Piacenza (102191 inhabitants)
72 Km N of Carrara (63133 inhabitants)
76 Km N of Massa (69479 inhabitants)
77 Km NE of La Spezia (93959 inhabitants)
86 Km W of Bologna (386663 inhabitants)
93 Km S of Brescia (196480 inhabitants)
94 Km N of Viareggio (62467 inhabitants)
97 Km SW of Verona (258765 inhabitants)
98 Km N of Lucca (89046 inhabitants)
99 Km NW of Pistoia (90315 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 1.7 2021-07-21
02:22:41
44.7112 10.3065 19 2021-12-29
11:12:18
Bollettino Sismico Italiano INGV 93873521
Reviewed
Rev100
ML 1.7 2021-07-21
02:22:41
44.7195 10.3087 11 2021-07-21
02:34:40
Sala Sismica INGV-Roma 93004641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-21 02:22:41 ± 0.11
Latitude 44.7112 ± 0.0063
Longitude 10.3065 ± 0.0114
Depth (km) 19 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93873521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 860
Semi-minor axis of confidence ellipse (meter) 241
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.12770
Epicentral distance of station farthest from the epicenter (degree) 1.63497
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 93004641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-21 02:34:40

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 93873521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-05 14:42:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CTI.HHZ. 2021-07-21T02:23:08.82 0.3 undecidable manual P 35 1.6350 54 -0.93 41
GU.POPM.HHZ. 2021-07-21T02:23:07.00 0.6 undecidable manual S 154 0.7392 96 1.28 31
ST.RONC.EHZ. 2021-07-21T02:23:04.66 0.3 undecidable manual P 10 1.2878 93 -0.06 63
SI.LUSI.HHZ. 2021-07-21T02:23:04.73 0.3 undecidable manual P 20 1.3256 93 -0.63 55
IV.BDI.HHZ. 2021-07-21T02:23:04.20 0.6 undecidable manual S 162 0.6799 97 0.23 47
ST.VARA.EHZ. 2021-07-21T02:23:03.06 0.1 undecidable manual P 20 1.1889 94 0.03 86
IV.BOB.HHE. 2021-07-21T02:23:02.00 0.3 undecidable manual S 276 0.6124 98 0.02 74
IV.ZONE.HHZ. 2021-07-21T02:23:01.07 0.6 undecidable manual P 353 1.0603 94 0.23 42
IV.MAGA.HHZ. 2021-07-21T02:23:01.22 0.3 undecidable manual P 12 1.0873 94 -0.08 66
IV.ROVR.HHZ. 2021-07-21T02:23:01.02 0.1 undecidable manual P 30 1.0792 94 -0.15 87
GU.EQUI.HHN. 2021-07-21T02:23:00.30 0.6 undecidable manual S 191 0.5558 99 -0.02 49
IV.ZEN8.EHZ. 2021-07-21T02:22:59.61 0.3 undecidable manual P 18 0.9731 95 0.25 65
GU.SARM.EHN. 2021-07-21T02:22:59.50 0.6 undecidable manual S 173 0.5306 99 -0.1 49
IV.SGAL.EHZ. 2021-07-21T02:22:57.71 0.3 undecidable manual P 0 0.8517 95 0.42 64
GU.GSCL.HHZ. 2021-07-21T02:22:56.90 0.3 undecidable manual S 151 0.4119 103 0.75 63
GU.POPM.HHZ. 2021-07-21T02:22:55.46 0.3 undecidable manual P 154 0.7392 96 0.09 71
GU.GORR.HHN. 2021-07-21T02:22:55.44 0.3 undecidable manual P 262 0.7285 96 0.26 69
IV.ZCCA.HNN. 2021-07-21T02:22:54.57 0.6 undecidable manual P 127 0.5980 98 1.6 26
IV.BDI.HHZ. 2021-07-21T02:22:54.20 0.1 undecidable manual P 162 0.6799 97 -0.16 94
IV.BOB.HHE. 2021-07-21T02:22:54.04 0.3 undecidable manual P 276 0.6124 98 0.83 59
IV.MSSA.HHZ. 2021-07-21T02:22:54.50 0.3 undecidable manual P 235 0.6871 97 0.02 73
GU.GRAM.HHZ. 2021-07-21T02:22:52.00 0.6 undecidable manual S 218 0.2797 111 -0.38 48
GU.EQUI.HHN. 2021-07-21T02:22:52.25 0.6 undecidable manual P 191 0.5558 99 -0.01 50
GU.SARM.EHN. 2021-07-21T02:22:51.55 0.1 undecidable manual P 173 0.5306 99 -0.29 94
GU.GSCL.HHZ. 2021-07-21T02:22:49.82 0.3 undecidable manual P 151 0.4119 103 -0.03 77
IV.NEVI.HNZ. 2021-07-21T02:22:48.50 0.3 undecidable manual S 177 0.1277 137 -0.1 80
GU.GRAM.HHZ. 2021-07-21T02:22:47.07 0.1 negative manual P 218 0.2797 111 -0.6 91
IV.NEVI.HNZ. 2021-07-21T02:22:45.08 0.1 undecidable manual P 177 0.1277 137 -0.41 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHN. ML:2.2 0.0006565 0.26 AML other m 2021-07-21T02:22:52.74
GU.GRAM.HHE. ML:2.0 0.0003725 0.24 AML other m 2021-07-21T02:22:53.27
GU.GSCL.HHN. ML:1.1 0.00003635 1.2 AML other m 2021-07-21T02:22:58.36
GU.GSCL.HHE. ML:1.0 0.00003105 1.46 AML other m 2021-07-21T02:23:01.96
IV.BDI.HHN. ML:1.0 0.00001696518 0.3408 AML other m 2021-07-21T02:23:04.72
IV.BDI.HHE. ML:1.5 0.00005045 0.9 AML other m 2021-07-21T02:23:05.26
GU.POPM.HHN. ML:1.4 0.0000362 0.76 AML other m 2021-07-21T02:23:08.34
GU.POPM.HHE. ML:1.5 0.0000432 0.2 AML other m 2021-07-21T02:23:08.70
IV.SGAL.EHN. ML:1.4 0.0000252 1.28 AML other m 2021-07-21T02:23:13.04
IV.ZEN8.EHE. ML:1.6 0.000032800000000000004 0.84 AML other m 2021-07-21T02:23:15.59
IV.ZEN8.EHN. ML:1.5 0.0000257 1.06 AML other m 2021-07-21T02:23:15.04
IV.SGAL.EHE. ML:1.3 0.00001805 0.08 AML other m 2021-07-21T02:23:16.06
IV.MAGA.HHN. ML:1.9 0.00005385 0.64 AML other m 2021-07-21T02:23:18.46
IV.ROVR.HHE. ML:1.9 0.00005555 0.8 AML other m 2021-07-21T02:23:18.17
IV.ROVR.HHN. ML:2.3 0.0001325 0.32 AML other m 2021-07-21T02:23:18.67
IV.ZONE.HHE. ML:1.6 0.0000303 0.74 AML other m 2021-07-21T02:23:19.60
IV.MAGA.HHE. ML:1.9 0.0000552 0.42 AML other m 2021-07-21T02:23:21.21
IV.ZONE.HHN. ML:1.7 0.00003855 1.06 AML other m 2021-07-21T02:23:21.11
SI.LUSI.HHE. ML:1.9 0.0000396 0.42 AML other m 2021-07-21T02:23:24.66
SI.LUSI.HHN. ML:2.1 0.0000634 0.3 AML other m 2021-07-21T02:23:26.00
IV.CTI.HHE. ML:1.9 0.0000281 0.76 AML other m 2021-07-21T02:23:35.85
IV.CTI.HHN. ML:1.8 0.00002525 0.72 AML other m 2021-07-21T02:23:36.87
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