The USGS is working to achieve a denser and more uniform spacing of seismographs in select urban areas. To accomplish this, we developed a digital seismograph that is designed to be installed in private homes, businesses, public buildings and schools. Data from these instruments is transmitted to USGS after an earthquake, and can be viewed here.

Interactive Map

Instrument List 2478_NP_01 3089_NP_01 7407_NP_01 7408_NP_01 8052_NP_01 ABBK_NP_01 ADMIN_NQ_01 AHOU_NP_01 ALUK_NP_01 AMJG_NP_01 ARTY_NP_01 AWCH_NP_01 BAKK_HV_01 BCDNQ_NE_01 BDNV_NN_01 BHSNQ_NQ_01 BLDCY_NN_01 C001_NC_01 C002_NC_01 C003_NC_01 C005_NC_01 C006_NC_01 C007_NC_01 C008_NC_01 C010_NC_01 C011_NC_01 C012_NC_01 C013_NC_01 C015_NC_01 C016_NC_01 C017_NC_01 C018_NC_01 C020_NC_01 C021_NC_01 C024_NC_01 C026_NC_01 C027_NC_01 C028_NC_01 C029_NC_01 C031_NC_01 C033_NC_01 C034_NC_01 C035_NC_01 C038_NC_01 C039_NC_01 C040_NC_01 C041_NC_01 C042_NC_01 C044_NC_01 C045_NC_01 C046_NC_01 C047_NC_01 C048_NC_01 C049_NC_01 C050_NC_01 C051_NC_01 C054_NC_01 C055_NC_01 C056_NC_01 C057_NC_01 C058_NC_01 C059_NC_01 C060_NC_01 C061_NC_01 C062_NC_01 C064_NC_01 C066_NC_01 C067_NC_01 C068_NC_01 C069_NC_01 C070_NC_01 C071_NC_01 C072_NC_01 C073_NC_01 CAPTL_NQ_01 CCHBT_NC_01 CCHBT_NC_02 CCHBT_NC_03 CCHBT_NC_04 CCHBT_NC_05 CKHH_NN_01 CRSN_NN_01 CUSLD_NC_01 CUSLD_NC_02 CUSLD_NC_03 CUSLD_NC_04 CUSLD_NC_05 DDHD_HV_-- DEPC2_MX_01 DONLK_NN_01 ESO_NQ_01 FALN_NN_01 FERN_NN_01 FKSS_HV_01 G002_NC_01 G003_NC_01 G004_NC_01 G005_NC_01 G006_NC_01 G007_NC_01 GBCE_NN_01 GIB_AK_00 H002_NC_01 HBOP_HV_01 HCDH_HV_01 HFA_HV_-- HFA_HV_01 HGC_HV_01 HHKR_HV_01 HHSC_NQ_01 HMLE_HV_01 HPP_HV_01 HQM_HV_01 HSAN_HV_01 HUG_NN_01 HVGC_HV_01 HVGC_HV_02 HWOL_HV_01 IVP_LD_01 J001_NC_01 J002_NC_01 J003_NC_01 J004_NC_01 J005_NC_01 J006_NC_01 J007_NC_01 J008_NC_01 J009_NC_01 J010_NC_01 J011_NC_01 J012_NC_01 J013_NC_01 J015_NC_01 J016_NC_01 J017_NC_01 J018_NC_01 J019_NC_01 J020_NC_01 J022_NC_01 J023_NC_01 J025_NC_01 J026_NC_01 J027_NC_01 J029_NC_01 J030_NC_01 J031_NC_01 J032_NC_01 J033_NC_01 J034_NC_01 J035_NC_01 J036_NC_01 J037_NC_01 J038_NC_01 J039_NC_01 J040_NC_01 J041_NC_01 J042_NC_01 J043_NC_01 J044_NC_01 J045_NC_01 J046_NC_01 J048_NC_02 J049_NC_01 J050_NC_01 J051_NC_01 J052_NC_01 J054_NC_01 J055_NC_01 J056_NC_01 J057_NC_01 J058_NC_01 J060_NC_01 J061_NC_01 J062_NC_01 J063_NC_01 J064_NC_01 J065_NC_01 J066_NC_01 J067_NC_01 J068_NC_01 JASP_NQ_01 JIML_NQ_01 K001_NC_01 K002_NC_01 K003_NC_01 K004_NC_01 KAN02_NQ_02 KAN15_NQ_01 KATNP_NQ_01 KNSET_NQ_01 KTNP2_NQ_01 L001_NC_01 L002_NC_01 L003_NC_01 LCC02_NQ_01 LOIL_LD_01 MAACT_NE_01 MAFXB_NE_01 MAGLO_NE_01 MANTK_NE_01 MATOP_NE_01 MCSO_NN_01 MFLV_NN_01 MONK_HV_-- MONK_HV_01 MOTT_HV_-- MPARD_NC_01 MPARD_NC_02 MPARD_NC_03 MPARD_NC_04 MPARD_NC_05 N001_NC_01 N002_NC_01 N003_NC_01 N004_NC_01 N005_NC_01 N006_NC_01 N008_NC_01 N009_NC_01 N010_NC_01 N011_NC_01 N013_NC_01 N014_NC_01 N015_NC_01 N016_NC_01 N017_NC_01 N018_NC_01 N019B_NC_01 N021_NC_01 N022_NC_01 NHFNK_NE_01 NICK_NQ_01 NIKO_NP_01 NQ063_LD_01 NQ599_NQ_01 NQ602_NQ_01 NQBME_AY_01 NQBU_MB_01 NQCV_MB_01 NQMA_MB_01 NQPLZ_AY_01 NQSO_MB_01 NQTMS_AY_01 NQUSE_AY_01 NQWL_MB_01 NQWLB_AY_01 NSC8_NQ_01 O001_NC_01 OH04_NQ_01 OK001_GS_01 OK002_GS_01 OK003_GS_01 OK005_GS_01 OK009_GS_01 OK011_GS_01 OK914_NQ_01 OK915_NQ_01 OK916_NQ_01 OK917_NQ_01 Q0000_CI_01 Q0001_CI_01 Q0002_CI_01 Q0003_CI_01 Q0005_CI_01 Q0008_CI_01 Q0009_CI_01 Q0010_CI_01 Q0013_CI_01 Q0014_CI_01 Q0015_CI_01 Q0017_CI_01 Q0018_CI_01 Q0020_CI_01 Q0022_CI_01 Q0024_CI_01 Q0025_CI_01 Q0026_CI_01 Q0027_CI_01 Q0030_CI_01 Q0031_CI_01 Q0032_CI_01 Q0034_CI_01 Q0035_CI_01 Q0037_CI_01 Q0038_CI_01 Q0039_CI_01 Q0040_CI_01 Q0041_CI_01 Q0045_CI_01 Q0046_CI_01 Q0048_CI_01 Q0049_CI_01 Q0050_CI_01 Q0055_CI_01 Q0056_CI_01 Q0057_CI_01 Q0058_CI_01 Q0059_CI_01 Q0061_CI_01 Q0063_CI_01 Q0064_CI_01 Q0067_CI_01 Q0068_CI_01 Q0069_CI_01 Q0070_CI_01 Q0071_CI_01 Q0072_CI_01 Q0073_CI_01 Q0074_CI_01 Q0077_CI_01 Q0078_CI_01 Q0079_CI_01 Q0080_CI_01 Q0082_CI_01 QADA_UW_01 QAMI_UW_01 QARB_UW_01 QBGD_UW_01 QBHW_UU_01 QBIT_UW_01 QBOG_UW_01 QBOV_UW_01 QBRO_UW_01 QBSH_UW_01 QBUS_UW_01 QCDG_UW_01 QCEN_UW_01 QCMM_UW_01 QCOM_UW_01 QCON_UW_01 QCOR_UW_01 QCSP_UU_01 QCWC_UU_01 QDAD_UW_01 QDHS_UW_01 QDJW_UW_01 QDLP_UW_01 QDPS_UU_01 QEGA_UW_01 QEMI_UW_01 QEMS_UW_01 QESB_UW_01 QEWU_UW_01 QFAL_UW_01 QFFG_UW_01 QFRG_UW_01 QFRZ_UW_01 QFTG_UU_01 QFUG_UW_01 QGBP_UW_01 QGFY_UW_01 QGLD_UW_01 QGNG_UW_01 QHAN_UW_01 QHOP_UW_01 QHRH_UW_01 QHSH_UW_01 QJBC_UW_01 QJEA_UW_01 QJHW_UU_01 QJLF_UW_01 QJMH_UU_01 QJOT_UU_01 QKEV_UW_01 QKRK_UW_01 QKSL2_UU_01 QKSO_UW_01 QKTN_UW_01 QLBR_UW_01 QLIMA_NQ_01 QLIN_UW_-- QLIN_UU_01 QLIZ_UW_01 QLKR_UW_01 QLUE_UW_01 QMAC_UW_01 QMAD_UW_01 QMAL_UW_01 QMAP_UW_01 QMAS_UW_01 QMDS_UU_01 QMIN_UW_01 QMLO_UW_01 QNCH_UW_01 QNKP_UW_01 QNPB_UW_01 QNRL_UU_01 QNWT_UW_01 QNZO_UW_01 QOCL_UW_01 QOCS_UW_01 QOGD_UU_01 QOUT_UW_01 QPAL_UW_01 QPAY_UU_01 QPBC_UW_01 QPID_UW_01 QPJE_UW_01 QPLV_UW_01 QPML_UU_01 QPRK_UW_01 QRCR_UW_01 QRJG_UU_01 QRMB_UW_01 QRNR_UW_01 QRWC_UW_01 QSAL_UW_01 QSAR2_UU_01 QSD01_CI_01 QSD02_CI_01 QSD03_CI_01 QSD04_CI_01 QSD05_CI_01 QSD06_CI_01 QSKT_UW_01 QSNL_UW_01 QSNZ_UW_01 QSPA_UU_01 QSRV_UW_01 QSTV_UU_01 QSUN_UU_01 QTKM_UW_01 QTNB_UW_01 QTVT_UW_01 QUGS_UU_01 QUIN_UW_-- QUIP_UW_01 QVAS_UW_01 QWAK_UW_01 QWER_UW_01 QWLM_UW_01 QWSU_UW_01 QWZR_UW_01 QXRD_UW_01 QZOE_UW_01 RENO3_NN_01 RRI_NQ_01 RSTON_NQ_01 RTOH_NQ_01 RUBY_NN_01 RWSVT_NC_01 RWSVT_NC_02 RWSVT_NC_03 RWSVT_NC_04 RWSVT_NC_05 SANFE_NQ_01 SPCK_NN_01 SSC_NQ_01 STYIT_NN_01 SVIL_NQ_01 TAPE_AK_00 TCES_NN_01 THOR_NQ_01 TUMT_NM_NQ UHHO_HV_-- UVM1_LD_01 UVM3_LD_01 VYA_NN_01 WIPLV_NN_01 WNC_NQ_01 WNMCA_NN_01 WUSLV_NN_01 YSLD_LD_01 View data