Earthquake with magnitude of ML 1.5 on date 21-07-2021 and time 03:53:59 (UTC) in region 1 km NW Bore (PR)

A magnitude ML 1.5 earthquake occured in region: 1 km NW Bore (PR), on

  • 21-07-2021 03:53:59 (UTC)
  • 21-07-2021 05:53:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.731, 9.79 at 24 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
Bore PR 1 749 749
Morfasso PC 7 1024 1773
Vernasca PC 8 2131 3904
Varsi PR 9 1230 5134
Lugagnano Val d'Arda PC 11 4116 9250
Pellegrino Parmense PR 11 1048 10298
Bardi PR 12 2227 12525
Gropparello PC 12 2293 14818
Castell'Arquato PC 15 4713 19531
Bettola PC 15 2828 22359
Farini PC 17 1290 23649
Salsomaggiore Terme PR 18 19831 43480
Varano de' Melegari PR 18 2676 46156
Ponte dell'Olio PC 19 4794 50950
Valmozzola PR 20 539 51489
Solignano PR 20 1773 53262

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km S of Piacenza (102191 inhabitants)
43 Km W of Parma (192836 inhabitants)
49 Km SW of Cremona (71901 inhabitants)
67 Km W of Reggio nell'Emilia (171345 inhabitants)
69 Km N of La Spezia (93959 inhabitants)
71 Km SE of Pavia (72576 inhabitants)
77 Km E of Genova (586655 inhabitants)
77 Km NW of Carrara (63133 inhabitants)
82 Km NW of Massa (69479 inhabitants)
87 Km W of Carpi (70699 inhabitants)
90 Km W of Modena (184973 inhabitants)
94 Km SE of Milano (1345851 inhabitants)
95 Km E of Alessandria (93943 inhabitants)
96 Km SW of Brescia (196480 inhabitants)
98 Km SE of Vigevano (63310 inhabitants)
99 Km SE of Sesto San Giovanni (81608 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.5 2021-07-21
03:53:59
44.7313 9.79 25 2021-07-21
04:07:09
Sala Sismica INGV-Roma 93005291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-21 03:53:59 ± 0.21
Latitude 44.7313 ± 0.0108
Longitude 9.7900 ± 0.0114
Depth (km) 25 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93005291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1210
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.13764
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 93005291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-21 04:07:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2021-07-21T03:55:43.01 3.0 positive manual Pn -2.53 0
IX.COL3.HHZ.02 2021-07-21T03:55:37.79 3.0 undecidable manual Pg 13.16 0
IV.SRES.HHZ. 2021-07-21T03:55:31.48 3.0 undecidable manual Sn 4.2 0
IV.COR1.EHZ. 2021-07-21T03:55:19.47 3.0 undecidable manual Sg 6.68 0
IV.RMP.HHZ. 2021-07-21T03:55:05.43 3.0 positive manual Pg 10.25 0
IV.MCIV.CHZ. 2021-07-21T03:54:38.78 3.0 negative manual Pn 0.49 0
IV.PII.HHZ. 2021-07-21T03:54:21.23 0.1 undecidable manual P 152 1.1376 97 0.4 78
GU.RNCA.HHZ. 2021-07-21T03:54:21.79 0.3 undecidable manual S 247 0.6511 103 -0.18 68
GU.EQUI.HHZ. 2021-07-21T03:54:20.70 0.6 undecidable manual S 155 0.6214 103 -0.41 43
GU.GORR.HHZ. 2021-07-21T03:54:13.98 0.3 undecidable manual S 251 0.375 114 -0.17 72
GU.EQUI.HHZ. 2021-07-21T03:54:12.04 0.1 undecidable manual P 155 0.6214 103 -0.08 92
GU.RNCA.HHZ. 2021-07-21T03:54:12.88 0.1 undecidable manual P 247 0.6511 103 0.27 88
GU.GRAM.HHE. 2021-07-21T03:54:12.51 0.6 undecidable manual S 141 0.3103 119 0.07 50
IV.SARZ.HHZ. 2021-07-21T03:54:11.75 0.6 undecidable manual P 283 0.6358 103 -0.61 41
IV.BOB.HHE. 2021-07-21T03:54:11.39 0.6 undecidable manual S 279 0.2455 126 0.57 44
IV.MSSA.HHZ. 2021-07-21T03:54:09.27 0.1 undecidable manual P 205 0.4578 109 -0.16 94
GU.GORR.HHZ. 2021-07-21T03:54:08.08 0.1 undecidable manual P 251 0.375 114 -0.02 99
GU.GRAM.HHE. 2021-07-21T03:54:07.13 0.1 undecidable manual P 141 0.3103 119 0.02 100
IV.PCN.EHZ. 2021-07-21T03:54:06.76 0.6 undecidable manual P 351 0.3076 119 -0.31 47
IV.BOB.HHE. 2021-07-21T03:54:06.38 0.1 undecidable manual P 279 0.2455 126 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GORR.HHE. ML:1.2 4.045E-5 0.48 AML other m 2021-07-21T03:54:14.42
GU.GORR.HHN. ML:1.2 5.075E-5 0.74 AML other m 2021-07-21T03:54:15.51
IV.MSSA.HHE. ML:1.4 6.215E-5 0.1 AML other m 2021-07-21T03:54:17.86
IV.MSSA.HHN. ML:1.6 7.88E-5 0.1 AML other m 2021-07-21T03:54:18.19
IV.SARZ.HHE. ML:1.9 0.00013 0.06 AML other m 2021-07-21T03:54:29.25
IV.SARZ.HHN. ML:1.8 0.000103 0.6 AML other m 2021-07-21T03:54:29.47
IV.FIR.HHE. ML:2.9 0.000343 0.06 AML other m 2021-07-21T03:54:30.58
IV.FIR.HHN. ML:2.9 0.0003385 0.56 AML other m 2021-07-21T03:54:48.49
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