Earthquake with magnitude of ML 1.7 on date 14-09-2021 and time 02:16:20 (UTC) in region 4 km NE Casina (RE)

A magnitude ML 1.7 earthquake occured in region: 4 km NE Casina (RE), on

  • 14-09-2021 02:16:20 (UTC)
  • 14-09-2021 04:16:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5440, 10.5340 at 21 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
Casina RE 4 4504 4504
Vezzano sul Crostolo RE 7 4259 8763
Viano RE 7 3374 12137
Baiso RE 8 3315 15452
Carpineti RE 10 4064 19516
Albinea RE 10 8860 28376
Canossa RE 11 3844 32220
Quattro Castella RE 11 13195 45415
San Polo d'Enza RE 13 6083 51498
Scandiano RE 14 25483 76981
Bibbiano RE 14 10268 87249
Castelnovo ne' Monti RE 16 10465 97714
Castellarano RE 16 15232 112946
Traversetolo PR 16 9425 122371
Vetto RE 17 1860 124231
Cavriago RE 17 9839 134070
Casalgrande RE 17 19310 153380
Prignano sulla Secchia MO 17 3747 157127
Neviano degli Arduini PR 18 3649 160776
Toano RE 19 4463 165239
Montecchio Emilia RE 19 10530 175769
Reggio nell'Emilia RE 19 171345 347114
Montechiarugolo PR 19 10813 357927
Sassuolo MO 20 40853 398780

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SW of Reggio nell'Emilia (171345 inhabitants)
33 Km SE of Parma (192836 inhabitants)
33 Km W of Modena (184973 inhabitants)
39 Km SW of Carpi (70699 inhabitants)
62 Km NE of Carrara (63133 inhabitants)
64 Km NE of Massa (69479 inhabitants)
64 Km W of Bologna (386663 inhabitants)
74 Km NE of La Spezia (93959 inhabitants)
74 Km NW of Pistoia (90315 inhabitants)
77 Km SE of Cremona (71901 inhabitants)
78 Km N of Lucca (89046 inhabitants)
79 Km NE of Viareggio (62467 inhabitants)
86 Km NW of Prato (191150 inhabitants)
87 Km SE of Piacenza (102191 inhabitants)
92 Km W of Ferrara (133155 inhabitants)
93 Km N of Pisa (89158 inhabitants)
96 Km W of Imola (69797 inhabitants)
Recent and historical seismicity
Seismic hazard
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 2021-09-14
02:16:20
44.5443 10.5338 21 2022-03-30
13:04:06
Bollettino Sismico Italiano INGV 95502481
Reviewed
Rev100
ML 1.7 2021-09-14
02:16:21
44.5577 10.5253 10 2021-09-14
06:25:24
Sala Sismica INGV-Roma 95409021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-14 02:16:20 ± 0.09
Latitude 44.5443 ± 0.0063
Longitude 10.5338 ± 0.0114
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95502481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 747
Semi-minor axis of confidence ellipse (meter) 631
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.44341
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 95409021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-14 06:25:24

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95502481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-16 10:06:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TRI.HHZ. 2021-09-14T02:17:44.87 0.3 undecidable manual S 11.9 0
OX.PLRO.HHZ. 2021-09-14T02:17:13.59 3.0 undecidable manual Pg 9.95 0
IV.FDMO.HHZ. 2021-09-14T02:17:04.29 3.0 negative manual Pg 5.87 0
GU.ZIAN.EHZ. 2021-09-14T02:16:55.02 3.0 undecidable manual Pn 0
IV.SACS.HHZ. 2021-09-14T02:16:49.56 3.0 undecidable manual Pn -2.97 0
GU.CTI.HHZ. 2021-09-14T02:16:49.14 3.0 undecidable manual P 0
SI.LUSI.HHZ. 2021-09-14T02:16:46.81 0.1 undecidable manual P 11 160.2174 54 0.23 83
ST.RONC.EHZ. 2021-09-14T02:16:46.74 1.0 undecidable manual P 2 159.4182 54 0.26 21
GU.DOSS.HHZ. 2021-09-14T02:16:45.42 3.0 undecidable manual P 0
ST.VARA.EHZ. 2021-09-14T02:16:44.61 1.0 undecidable manual P 11 144.9438 54 -0.07 22
IV.MAGA.HHZ. 2021-09-14T02:16:43.24 0.1 negative manual P 3 136.7631 95 -0.27 88
IV.MBAL.EHZ. 2021-09-14T02:16:42.55 0.1 undecidable manual P 11 130.4694 95 0.01 95
IV.VOBA.EHZ. 2021-09-14T02:16:41.41 0.6 undecidable manual P 359 121.8891 95 0.18 47
IV.ZEN8.EHZ. 2021-09-14T02:16:41.31 0.1 undecidable manual P 7 122.2887 95 0.02 96
IV.SALO.HHZ. 2021-09-14T02:16:40.81 0.1 undecidable manual P 360 119.1918 96 0 97
IV.TREG.EHZ. 2021-09-14T02:16:40.50 0.1 undecidable manual P 24 119.1918 96 -0.31 91
GU.IMOL.EHZ. 2021-09-14T02:16:39.31 3.0 undecidable manual P 0
IV.BDI.HHZ. 2021-09-14T02:16:38.57 0.6 undecidable manual S 175 53.6019 104 0.5 49
GU.GORR.HHZ. 2021-09-14T02:16:38.15 0.1 undecidable manual P 275 98.3238 97 0.53 90
IV.PII.HHZ. 2021-09-14T02:16:36.68 0.6 undecidable manual P 180 91.242 98 0.14 50
IV.MSSA.HHZ. 2021-09-14T02:16:35.69 0.1 undecidable manual P 253 84.4488 98 0.2 100
IV.PLMA.HHZ. 2021-09-14T02:16:34.19 0.1 positive manual P 225 76.9674 99 -0.17 26
GU.GRAM.HHZ. 2021-09-14T02:16:33.79 0.3 undecidable manual S 261 37.5291 111 -0.19 82
GU.POPM.HHZ. 2021-09-14T02:16:31.36 0.6 undecidable manual P 162 58.0974 103 -0.15 53
IV.NEVI.HNZ. 2021-09-14T02:16:30.40 0.6 undecidable manual S 284 17.7711 135 0.93 44
GU.GSCL.HHZ. 2021-09-14T02:16:30.40 0.6 undecidable manual S 169 21.867 128 0.09 57
IV.BDI.HHZ. 2021-09-14T02:16:30.71 0.6 positive manual P 175 53.6019 104 -0.12 54
GU.EQUI.HHZ. 2021-09-14T02:16:30.30 0.3 positive manual P 216 51.7038 105 -0.25 53
IV.ZCCA.HHZ. 2021-09-14T02:16:29.65 0.6 undecidable manual P 121 41.1255 109 0.67 48
GU.GRAM.HHZ. 2021-09-14T02:16:28.01 0.3 undecidable manual P 261 37.5291 111 -0.46 78
GU.SARM.EHN. 2021-09-14T02:16:28.39 0.6 undecidable manual P 195 41.3253 109 -0.63 49
IV.NEVI.HNZ. 2021-09-14T02:16:25.81 0.3 undecidable manual P 284 17.7711 135 -0.06 88
GU.GSCL.HHZ. 2021-09-14T02:16:25.89 0.3 undecidable manual P 169 21.867 128 -0.47 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHE. ML:1.6 0.0002145 0.72 AML other m 2021-09-14T02:16:30.87
GU.GSCL.HHN. ML:1.8 0.0003121556 1.4592 AML other m 2021-09-14T02:16:31.02
GU.GRAM.HHN. ML:1.8 0.00022138304999999998 0.3392 AML other m 2021-09-14T02:16:34.33
GU.GRAM.HHE. ML:2.1 0.00040055220000000005 0.4208 AML other m 2021-09-14T02:16:34.61
IV.BDI.HNE. ML:1.7 0.0001131044 0.3504 AML other m 2021-09-14T02:16:38.92
IV.BDI.HNN. ML:1.7 0.00010767274 0.5488 AML other m 2021-09-14T02:16:38.84
IV.BDI.HHE. ML:1.7 0.00010224047 0.32 AML other m 2021-09-14T02:16:38.75
IV.BDI.HHN. ML:1.6 0.00008036031499999998 0.2592 AML other m 2021-09-14T02:16:40.04
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