Earthquake with magnitude of Md 3.1 on date 14-05-1999 and time 05:22:37 (Italy) in region 2 km W Cascia (PG)

A magnitude Md 3.1 earthquake occured in region: 2 km W Cascia (PG), on

  • 14-05-1999 03:22:37 (UTC)
  • 14-05-1999 05:22:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.72, 12.99 at 4 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
Cascia PG 2 3217 3217
Poggiodomo PG 5 117 3334
Monteleone di Spoleto PG 8 599 3933
Norcia PG 12 4957 8890
Vallo di Nera PG 12 364 9254
Sant'Anatolia di Narco PG 13 564 9818
Cerreto di Spoleto PG 13 1075 10893
Scheggino PG 13 461 11354
Leonessa RI 17 2435 13789
Cittareale RI 18 482 14271
Preci PG 19 724 14995
Polino TR 19 233 15228
Ferentillo TR 20 1913 17141
Sellano PG 20 1079 18220

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Terni (111501 inhabitants)
36 Km SE of Foligno (57155 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
59 Km W of Teramo (54892 inhabitants)
66 Km SE of Perugia (166134 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
83 Km N of Guidonia Montecelio (88673 inhabitants)
85 Km N of Tivoli (56533 inhabitants)
97 Km W of Montesilvano (53738 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
Rev 1000 Md 3.1
ML-VAX 1.9
1999-05-14
03:22:37
42.72 12.99 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 365789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-05-14 03:22:37 ± 0.222
Latitude 42.72 ± 0.01
Longitude 12.99 ± 0.02
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 365789

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2107.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.01376
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 365789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:43:07

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 9
Type of magnitude ML
Reference to an origin 365789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FB9.Z. 1999-05-14T03:23:11.72 10.0 undecidable manual SG 351 0.0088 -0.27 0.5
--.GRFL.Z. 1999-05-14T03:23:05.91 10.0 undecidable manual PN 287 0.0138 0.59 0.8
--.SFI.Z. 1999-05-14T03:23:05.48 10.0 undecidable manual PN 325 0.013 1.36 0.3
--.CSNT.Z. 1999-05-14T03:23:04.75 10.0 undecidable manual PN 301 0.013 0.58 0.9
--.CRE.Z. 1999-05-14T03:23:01.25 10.0 undecidable manual PN 320 0.0106 0.84 0.7
--.SDI.Z. 1999-05-14T03:23:00.65 10.0 undecidable manual PN 148 0.0105 0.3 1.2
--.RSM.Z. 1999-05-14T03:22:59.94 10.0 undecidable manual PN 342 0.0114 -1.76 0.1
--.RMP.Z. 1999-05-14T03:22:56.49 10.0 undecidable manual PG 193 0.0083 0.27 1.4
--.RDP.Z. 1999-05-14T03:22:56.81 10.0 undecidable manual PG 192 0.0087 -0.32 1.3
--.AQU.Z. 1999-05-14T03:22:55.92 10.0 undecidable manual SG 140 0.0042 0.5 0.5
--.FB9.Z. 1999-05-14T03:22:55.93 10.0 undecidable manual PG 351 0.0088 -1.36 0.3
--.MNS.Z. 1999-05-14T03:22:52.34 10.0 undecidable manual SG 214 0.0036 -0.46 0.5
--.ASS.Z. 1999-05-14T03:22:52.92 10.0 undecidable manual SG 324 0.0038 -0.75 0.4
--.PQ9.Z. 1999-05-14T03:22:51.95 10.0 undecidable manual PG 156 0.0068 -1.06 0.6
--.AQU.Z. 1999-05-14T03:22:47.38 10.0 undecidable manual PG 140 0.0042 -0.34 1.4
--.MNS.Z. 1999-05-14T03:22:46.39 10.0 positive manual PG 214 0.0036 0.18 3
--.ASS.Z. 1999-05-14T03:22:46.37 10.0 undecidable manual PG 324 0.0038 -0.34 1.4
--.NRCA.Z. 1999-05-14T03:22:41.12 10.0 positive manual PG 37 0.0013 0.56 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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